libraries/common.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Misc functions used all over the scripts.
   5  *
   6  * @version $Id$
   7  */
   8
   9 /**
  10  * Exponential expression / raise number into power
  11  *
  12  * @uses    function_exists()
  13  * @uses    bcpow()
  14  * @uses    gmp_pow()
  15  * @uses    gmp_strval()
  16  * @uses    pow()
  17  * @param   number  $base
  18  * @param   number  $exp
  19  * @param   string  pow function use, or false for auto-detect
  20  * @return  mixed  string or float
  21  */
  22 function PMA_pow($base, $exp, $use_function = false)
  23 {
  24     static $pow_function = null;
  25
  26     if ($exp < 0) {
  27         return false;
  28     }
  29
  30     if (null == $pow_function) {
  31         if (function_exists('bcpow')) {
  32             // BCMath Arbitrary Precision Mathematics Function
  33             $pow_function = 'bcpow';
  34         } elseif (function_exists('gmp_pow')) {
  35             // GMP Function
  36             $pow_function = 'gmp_pow';
  37         } else {
  38             // PHP function
  39             $pow_function = 'pow';
  40         }
  41     }
  42
  43     if (! $use_function) {
  44         $use_function = $pow_function;
  45     }
  46
  47     switch ($use_function) {
  48         case 'bcpow' :
  49             //bcscale(10);
  50             $pow = bcpow($base, $exp);
  51             break;
  52         case 'gmp_pow' :
  53              $pow = gmp_strval(gmp_pow($base, $exp));
  54             break;
  55         case 'pow' :
  56             $base = (float) $base;
  57             $exp = (int) $exp;
  58             $pow = pow($base, $exp);
  59             break;
  60         default:
  61             $pow = $use_function($base, $exp);
  62     }
  63
  64     return $pow;
  65 }
  66
  67 /**
  68  * string PMA_getIcon(string $icon)
  69  *
  70  * @uses    $GLOBALS['pmaThemeImage']
  71  * @uses    $GLOBALS['cfg']['PropertiesIconic']
  72  * @uses    htmlspecialchars()
  73  * @param   string  $icon   name of icon file
  74  * @param   string  $alternate alternate text
  75  * @param   boolean $container include in container
  76  * @param   boolean $$force_text whether to force alternate text to be displayed
  77  * @return          html img tag
  78  */
  79 function PMA_getIcon($icon, $alternate = '', $container = false, $force_text = false)
  80 {
  81     $include_icon = false;
  82     $include_text = false;
  83     $include_box  = false;
  84     $alternate    = htmlspecialchars($alternate);
  85     $button       = '';
  86
  87     if ($GLOBALS['cfg']['PropertiesIconic']) {
  88          $include_icon = true;
  89     }
  90
  91     if ($force_text
  92      || ! (true === $GLOBALS['cfg']['PropertiesIconic'])
  93      || ! $include_icon) {
  94         // $cfg['PropertiesIconic'] is false or both
  95         // OR we have no $include_icon
  96         $include_text = true;
  97     }
  98
  99     if ($include_text && $include_icon && $container) {
 100         // we have icon, text and request for container
 101         $include_box = true;
 102     }
 103
 104     if ($include_box) {
 105         $button .= '<div class="nowrap">';
 106     }
 107
 108     if ($include_icon) {
 109         $button .= '<img src="' . $GLOBALS['pmaThemeImage'] . $icon . '"'
 110             . ' title="' . $alternate . '" alt="' . $alternate . '"'
 111             . ' class="icon" width="16" height="16" />';
 112     }
 113
 114     if ($include_icon && $include_text) {
 115         $button .= ' ';
 116     }
 117
 118     if ($include_text) {
 119         $button .= $alternate;
 120     }
 121
 122     if ($include_box) {
 123         $button .= '</div>';
 124     }
 125
 126     return $button;
 127 }
 128
 129 /**
 130  * Displays the maximum size for an upload
 131  *
 132  * @uses    $GLOBALS['strMaximumSize']
 133  * @uses    PMA_formatByteDown()
 134  * @uses    sprintf()
 135  * @param   integer  the size
 136  *
 137  * @return  string   the message
 138  *
 139  * @access  public
 140  */
 141 function PMA_displayMaximumUploadSize($max_upload_size)
 142 {
 143     list($max_size, $max_unit) = PMA_formatByteDown($max_upload_size);
 144     return '(' . sprintf($GLOBALS['strMaximumSize'], $max_size, $max_unit) . ')';
 145 }
 146
 147 /**
 148  * Generates a hidden field which should indicate to the browser
 149  * the maximum size for upload
 150  *
 151  * @param   integer  the size
 152  *
 153  * @return  string   the INPUT field
 154  *
 155  * @access  public
 156  */
 157  function PMA_generateHiddenMaxFileSize($max_size)
 158  {
 159      return '<input type="hidden" name="MAX_FILE_SIZE" value="' .$max_size . '" />';
 160  }
 161
 162 /**
 163  * Add slashes before "'" and "\" characters so a value containing them can
 164  * be used in a sql comparison.
 165  *
 166  * @uses    str_replace()
 167  * @param   string   the string to slash
 168  * @param   boolean  whether the string will be used in a 'LIKE' clause
 169  *                   (it then requires two more escaped sequences) or not
 170  * @param   boolean  whether to treat cr/lfs as escape-worthy entities
 171  *                   (converts \n to \\n, \r to \\r)
 172  *
 173  * @param   boolean  whether this function is used as part of the
 174  *                   "Create PHP code" dialog
 175  *
 176  * @return  string   the slashed string
 177  *
 178  * @access  public
 179  */
 180 function PMA_sqlAddslashes($a_string = '', $is_like = false, $crlf = false, $php_code = false)
 181 {
 182     if ($is_like) {
 183         $a_string = str_replace('\\', '\\\\\\\\', $a_string);
 184     } else {
 185         $a_string = str_replace('\\', '\\\\', $a_string);
 186     }
 187
 188     if ($crlf) {
 189         $a_string = str_replace("\n", '\n', $a_string);
 190         $a_string = str_replace("\r", '\r', $a_string);
 191         $a_string = str_replace("\t", '\t', $a_string);
 192     }
 193
 194     if ($php_code) {
 195         $a_string = str_replace('\'', '\\\'', $a_string);
 196     } else {
 197         $a_string = str_replace('\'', '\'\'', $a_string);
 198     }
 199
 200     return $a_string;
 201 } // end of the 'PMA_sqlAddslashes()' function
 202
 203
 204 /**
 205  * Add slashes before "_" and "%" characters for using them in MySQL
 206  * database, table and field names.
 207  * Note: This function does not escape backslashes!
 208  *
 209  * @uses    str_replace()
 210  * @param   string   the string to escape
 211  *
 212  * @return  string   the escaped string
 213  *
 214  * @access  public
 215  */
 216 function PMA_escape_mysql_wildcards($name)
 217 {
 218     $name = str_replace('_', '\\_', $name);
 219     $name = str_replace('%', '\\%', $name);
 220
 221     return $name;
 222 } // end of the 'PMA_escape_mysql_wildcards()' function
 223
 224 /**
 225  * removes slashes before "_" and "%" characters
 226  * Note: This function does not unescape backslashes!
 227  *
 228  * @uses    str_replace()
 229  * @param   string   $name  the string to escape
 230  * @return  string   the escaped string
 231  * @access  public
 232  */
 233 function PMA_unescape_mysql_wildcards($name)
 234 {
 235     $name = str_replace('\\_', '_', $name);
 236     $name = str_replace('\\%', '%', $name);
 237
 238     return $name;
 239 } // end of the 'PMA_unescape_mysql_wildcards()' function
 240
 241 /**
 242  * removes quotes (',",`) from a quoted string
 243  *
 244  * checks if the sting is quoted and removes this quotes
 245  *
 246  * @uses    str_replace()
 247  * @uses    substr()
 248  * @param   string  $quoted_string  string to remove quotes from
 249  * @param   string  $quote          type of quote to remove
 250  * @return  string  unqoted string
 251  */
 252 function PMA_unQuote($quoted_string, $quote = null)
 253 {
 254     $quotes = array();
 255
 256     if (null === $quote) {
 257         $quotes[] = '`';
 258         $quotes[] = '"';
 259         $quotes[] = "'";
 260     } else {
 261         $quotes[] = $quote;
 262     }
 263
 264     foreach ($quotes as $quote) {
 265         if (substr($quoted_string, 0, 1) === $quote
 266          && substr($quoted_string, -1, 1) === $quote) {
 267              $unquoted_string = substr($quoted_string, 1, -1);
 268              // replace escaped quotes
 269              $unquoted_string = str_replace($quote . $quote, $quote, $unquoted_string);
 270              return $unquoted_string;
 271          }
 272     }
 273
 274     return $quoted_string;
 275 }
 276
 277 /**
 278  * format sql strings
 279  *
 280  * @todo    move into PMA_Sql
 281  * @uses    PMA_SQP_isError()
 282  * @uses    PMA_SQP_formatHtml()
 283  * @uses    PMA_SQP_formatNone()
 284  * @uses    is_array()
 285  * @param   mixed    pre-parsed SQL structure
 286  *
 287  * @return  string   the formatted sql
 288  *
 289  * @global  array    the configuration array
 290  * @global  boolean  whether the current statement is a multiple one or not
 291  *
 292  * @access  public
 293  *
 294  * @author  Robin Johnson <robbat2@users.sourceforge.net>
 295  */
 296 function PMA_formatSql($parsed_sql, $unparsed_sql = '')
 297 {
 298     global $cfg;
 299
 300     // Check that we actually have a valid set of parsed data
 301     // well, not quite
 302     // first check for the SQL parser having hit an error
 303     if (PMA_SQP_isError()) {
 304         return $parsed_sql;
 305     }
 306     // then check for an array
 307     if (!is_array($parsed_sql)) {
 308         // We don't so just return the input directly
 309         // This is intended to be used for when the SQL Parser is turned off
 310         $formatted_sql = '<pre>' . "\n"
 311                         . (($cfg['SQP']['fmtType'] == 'none' && $unparsed_sql != '') ? $unparsed_sql : $parsed_sql) . "\n"
 312                         . '</pre>';
 313         return $formatted_sql;
 314     }
 315
 316     $formatted_sql        = '';
 317
 318     switch ($cfg['SQP']['fmtType']) {
 319         case 'none':
 320             if ($unparsed_sql != '') {
 321                 $formatted_sql = "<pre>\n" . PMA_SQP_formatNone(array('raw' => $unparsed_sql)) . "\n</pre>";
 322             } else {
 323                 $formatted_sql = PMA_SQP_formatNone($parsed_sql);
 324             }
 325             break;
 326         case 'html':
 327             $formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'color');
 328             break;
 329         case 'text':
 330             //$formatted_sql = PMA_SQP_formatText($parsed_sql);
 331             $formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'text');
 332             break;
 333         default:
 334             break;
 335     } // end switch
 336
 337     return $formatted_sql;
 338 } // end of the "PMA_formatSql()" function
 339
 340
 341 /**
 342  * Displays a link to the official MySQL documentation
 343  *
 344  * @uses    $cfg['MySQLManualType']
 345  * @uses    $cfg['MySQLManualBase']
 346  * @uses    $cfg['ReplaceHelpImg']
 347  * @uses    $GLOBALS['mysql_4_1_doc_lang']
 348  * @uses    $GLOBALS['mysql_5_1_doc_lang']
 349  * @uses    $GLOBALS['mysql_5_0_doc_lang']
 350  * @uses    $GLOBALS['strDocu']
 351  * @uses    $GLOBALS['pmaThemeImage']
 352  * @uses    PMA_MYSQL_INT_VERSION
 353  * @uses    strtolower()
 354  * @uses    str_replace()
 355  * @param string  chapter of "HTML, one page per chapter" documentation
 356  * @param string  contains name of page/anchor that is being linked
 357  * @param bool    whether to use big icon (like in left frame)
 358  *
 359  * @return  string  the html link
 360  *
 361  * @access  public
 362  */
 363 function PMA_showMySQLDocu($chapter, $link, $big_icon = false)
 364 {
 365     global $cfg;
 366
 367     if ($cfg['MySQLManualType'] == 'none' || empty($cfg['MySQLManualBase'])) {
 368         return '';
 369     }
 370
 371     // Fixup for newly used names:
 372     $chapter = str_replace('_', '-', strtolower($chapter));
 373     $link = str_replace('_', '-', strtolower($link));
 374
 375     switch ($cfg['MySQLManualType']) {
 376         case 'chapters':
 377             if (empty($chapter)) {
 378                 $chapter = 'index';
 379             }
 380             $url = $cfg['MySQLManualBase'] . '/' . $chapter . '.html#' . $link;
 381             break;
 382         case 'big':
 383             $url = $cfg['MySQLManualBase'] . '#' . $link;
 384             break;
 385         case 'searchable':
 386             if (empty($link)) {
 387                 $link = 'index';
 388             }
 389             $url = $cfg['MySQLManualBase'] . '/' . $link . '.html';
 390             break;
 391         case 'viewable':
 392         default:
 393             if (empty($link)) {
 394                 $link = 'index';
 395             }
 396             $mysql = '5.0';
 397             $lang = 'en';
 398             if (defined('PMA_MYSQL_INT_VERSION')) {
 399                 if (PMA_MYSQL_INT_VERSION >= 50100) {
 400                     $mysql = '5.1';
 401                     if (!empty($GLOBALS['mysql_5_1_doc_lang'])) {
 402                         $lang = $GLOBALS['mysql_5_1_doc_lang'];
 403                     }
 404                 } elseif (PMA_MYSQL_INT_VERSION >= 50000) {
 405                     $mysql = '5.0';
 406                     if (!empty($GLOBALS['mysql_5_0_doc_lang'])) {
 407                         $lang = $GLOBALS['mysql_5_0_doc_lang'];
 408                     }
 409                 }
 410             }
 411             $url = $cfg['MySQLManualBase'] . '/' . $mysql . '/' . $lang . '/' . $link . '.html';
 412             break;
 413     }
 414
 415     if ($big_icon) {
 416         return '<a href="' . $url . '" target="mysql_doc"><img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_sqlhelp.png" width="16" height="16" alt="' . $GLOBALS['strDocu'] . '" title="' . $GLOBALS['strDocu'] . '" /></a>';
 417     } elseif ($GLOBALS['cfg']['ReplaceHelpImg']) {
 418         return '<a href="' . $url . '" target="mysql_doc"><img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . $GLOBALS['strDocu'] . '" title="' . $GLOBALS['strDocu'] . '" /></a>';
 419     } else {
 420         return '[<a href="' . $url . '" target="mysql_doc">' . $GLOBALS['strDocu'] . '</a>]';
 421     }
 422 } // end of the 'PMA_showMySQLDocu()' function
 423
 424 /**
 425  * returns HTML for a footnote marker and add the messsage to the footnotes
 426  *
 427  * @uses    $GLOBALS['footnotes']
 428  * @param   string   the error message
 429  * @return  string html code for a footnote marker
 430  * @access  public
 431  */
 432 function PMA_showHint($message, $bbcode = false, $type = 'notice')
 433 {
 434     if ($message instanceof PMA_Message) {
 435         $key = $message->getHash();
 436         $type = $message->getLevel();
 437     } else {
 438         $key = md5($message);
 439     }
 440
 441     if (! isset($GLOBALS['footnotes'][$key])) {
 442         $nr = count($GLOBALS['footnotes']) + 1;
 443         // this is the first instance of this message
 444         $instance = 1;
 445         $GLOBALS['footnotes'][$key] = array(
 446             'note'      => $message,
 447             'type'      => $type,
 448             'nr'        => $nr,
 449             'instance'  => $instance
 450         );
 451     } else {
 452         $nr = $GLOBALS['footnotes'][$key]['nr'];
 453         // another instance of this message (to ensure ids are unique)
 454         $instance = ++$GLOBALS['footnotes'][$key]['instance'];
 455     }
 456
 457     if ($bbcode) {
 458         return '[sup]' . $nr . '[/sup]';
 459     }
 460
 461     // footnotemarker used in js/tooltip.js
 462     return '<sup class="footnotemarker" id="footnote_sup_' . $nr . '_' . $instance . '">' . $nr . '</sup>';
 463 }
 464
 465 /**
 466  * Displays a MySQL error message in the right frame.
 467  *
 468  * @uses    footer.inc.php
 469  * @uses    header.inc.php
 470  * @uses    $GLOBALS['sql_query']
 471  * @uses    $GLOBALS['strError']
 472  * @uses    $GLOBALS['strSQLQuery']
 473  * @uses    $GLOBALS['pmaThemeImage']
 474  * @uses    $GLOBALS['strEdit']
 475  * @uses    $GLOBALS['strMySQLSaid']
 476  * @uses    $GLOBALS['cfg']['PropertiesIconic']
 477  * @uses    $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']
 478  * @uses    PMA_backquote()
 479  * @uses    PMA_DBI_getError()
 480  * @uses    PMA_formatSql()
 481  * @uses    PMA_generate_common_hidden_inputs()
 482  * @uses    PMA_generate_common_url()
 483  * @uses    PMA_showMySQLDocu()
 484  * @uses    PMA_sqlAddslashes()
 485  * @uses    PMA_SQP_isError()
 486  * @uses    PMA_SQP_parse()
 487  * @uses    PMA_SQP_getErrorString()
 488  * @uses    strtolower()
 489  * @uses    urlencode()
 490  * @uses    str_replace()
 491  * @uses    nl2br()
 492  * @uses    substr()
 493  * @uses    preg_replace()
 494  * @uses    preg_match()
 495  * @uses    explode()
 496  * @uses    implode()
 497  * @uses    is_array()
 498  * @uses    function_exists()
 499  * @uses    htmlspecialchars()
 500  * @uses    trim()
 501  * @uses    strstr()
 502  * @param   string   the error message
 503  * @param   string   the sql query that failed
 504  * @param   boolean  whether to show a "modify" link or not
 505  * @param   string   the "back" link url (full path is not required)
 506  * @param   boolean  EXIT the page?
 507  *
 508  * @global  string    the curent table
 509  * @global  string    the current db
 510  *
 511  * @access  public
 512  */
 513 function PMA_mysqlDie($error_message = '', $the_query = '',
 514                         $is_modify_link = true, $back_url = '', $exit = true)
 515 {
 516     global $table, $db;
 517
 518     /**
 519      * start http output, display html headers
 520      */
 521     require_once './libraries/header.inc.php';
 522
 523     if (!$error_message) {
 524         $error_message = PMA_DBI_getError();
 525     }
 526     if (!$the_query && !empty($GLOBALS['sql_query'])) {
 527         $the_query = $GLOBALS['sql_query'];
 528     }
 529
 530     // --- Added to solve bug #641765
 531     // Robbat2 - 12 January 2003, 9:46PM
 532     // Revised, Robbat2 - 13 January 2003, 2:59PM
 533     if (!function_exists('PMA_SQP_isError') || PMA_SQP_isError()) {
 534         $formatted_sql = htmlspecialchars($the_query);
 535     } elseif (empty($the_query) || trim($the_query) == '') {
 536         $formatted_sql = '';
 537     } else {
 538         if (strlen($the_query) > $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) {
 539             $formatted_sql = substr($the_query, 0, $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) . '[...]';
 540         } else {
 541             $formatted_sql = PMA_formatSql(PMA_SQP_parse($the_query), $the_query);
 542         }
 543     }
 544     // ---
 545     echo "\n" . '<!-- PMA-SQL-ERROR -->' . "\n";
 546     echo '    <div class="error"><h1>' . $GLOBALS['strError'] . '</h1>' . "\n";
 547     // if the config password is wrong, or the MySQL server does not
 548     // respond, do not show the query that would reveal the
 549     // username/password
 550     if (!empty($the_query) && !strstr($the_query, 'connect')) {
 551         // --- Added to solve bug #641765
 552         // Robbat2 - 12 January 2003, 9:46PM
 553         // Revised, Robbat2 - 13 January 2003, 2:59PM
 554         if (function_exists('PMA_SQP_isError') && PMA_SQP_isError()) {
 555             echo PMA_SQP_getErrorString() . "\n";
 556             echo '<br />' . "\n";
 557         }
 558         // ---
 559         // modified to show me the help on sql errors (Michael Keck)
 560         echo '    <p><strong>' . $GLOBALS['strSQLQuery'] . ':</strong>' . "\n";
 561         if (strstr(strtolower($formatted_sql), 'select')) { // please show me help to the error on select
 562             echo PMA_showMySQLDocu('SQL-Syntax', 'SELECT');
 563         }
 564         if ($is_modify_link) {
 565             $_url_params = array(
 566                 'sql_query' => $the_query,
 567                 'show_query' => 1,
 568             );
 569             if (strlen($table)) {
 570                 $_url_params['db'] = $db;
 571                 $_url_params['table'] = $table;
 572                 $doedit_goto = '<a href="tbl_sql.php?' . PMA_generate_common_url($_url_params) . '">';
 573             } elseif (strlen($db)) {
 574                 $_url_params['db'] = $db;
 575                 $doedit_goto = '<a href="db_sql.php?' . PMA_generate_common_url($_url_params) . '">';
 576             } else {
 577                 $doedit_goto = '<a href="server_sql.php?' . PMA_generate_common_url($_url_params) . '">';
 578             }
 579
 580             echo $doedit_goto
 581                . PMA_getIcon('b_edit.png', $GLOBALS['strEdit'])
 582                . '</a>';
 583         } // end if
 584         echo '    </p>' . "\n"
 585             .'    <p>' . "\n"
 586             .'        ' . $formatted_sql . "\n"
 587             .'    </p>' . "\n";
 588     } // end if
 589
 590     $tmp_mysql_error = ''; // for saving the original $error_message
 591     if (!empty($error_message)) {
 592         $tmp_mysql_error = strtolower($error_message); // save the original $error_message
 593         $error_message = htmlspecialchars($error_message);
 594         $error_message = preg_replace("@((\015\012)|(\015)|(\012)){3,}@", "\n\n", $error_message);
 595     }
 596     // modified to show me the help on error-returns (Michael Keck)
 597     // (now error-messages-server)
 598     echo '<p>' . "\n"
 599             . '    <strong>' . $GLOBALS['strMySQLSaid'] . '</strong>'
 600             . PMA_showMySQLDocu('Error-messages-server', 'Error-messages-server')
 601             . "\n"
 602             . '</p>' . "\n";
 603
 604     // The error message will be displayed within a CODE segment.
 605     // To preserve original formatting, but allow wordwrapping, we do a couple of replacements
 606
 607     // Replace all non-single blanks with their HTML-counterpart
 608     $error_message = str_replace('  ', '&nbsp;&nbsp;', $error_message);
 609     // Replace TAB-characters with their HTML-counterpart
 610     $error_message = str_replace("\t", '&nbsp;&nbsp;&nbsp;&nbsp;', $error_message);
 611     // Replace linebreaks
 612     $error_message = nl2br($error_message);
 613
 614     echo '<code>' . "\n"
 615         . $error_message . "\n"
 616         . '</code><br />' . "\n";
 617     echo '</div>';
 618
 619     if ($exit) {
 620         if (! empty($back_url)) {
 621             if (strstr($back_url, '?')) {
 622                 $back_url .= '&amp;no_history=true';
 623             } else {
 624                 $back_url .= '?no_history=true';
 625             }
 626             echo '<fieldset class="tblFooters">';
 627             echo '[ <a href="' . $back_url . '">' . $GLOBALS['strBack'] . '</a> ]';
 628             echo '</fieldset>' . "\n\n";
 629         }
 630         /**
 631          * display footer and exit
 632          */
 633         require_once './libraries/footer.inc.php';
 634     }
 635 } // end of the 'PMA_mysqlDie()' function
 636
 637 /**
 638  * Send HTTP header, taking IIS limits into account (600 seems ok)
 639  *
 640  * @uses    PMA_IS_IIS
 641  * @uses    PMA_COMING_FROM_COOKIE_LOGIN
 642  * @uses    PMA_get_arg_separator()
 643  * @uses    SID
 644  * @uses    strlen()
 645  * @uses    strpos()
 646  * @uses    header()
 647  * @uses    session_write_close()
 648  * @uses    headers_sent()
 649  * @uses    function_exists()
 650  * @uses    debug_print_backtrace()
 651  * @uses    trigger_error()
 652  * @uses    defined()
 653  * @param   string   $uri the header to send
 654  * @return  boolean  always true
 655  */
 656 function PMA_sendHeaderLocation($uri)
 657 {
 658     if (PMA_IS_IIS && strlen($uri) > 600) {
 659
 660         echo '<html><head><title>- - -</title>' . "\n";
 661         echo '<meta http-equiv="expires" content="0">' . "\n";
 662         echo '<meta http-equiv="Pragma" content="no-cache">' . "\n";
 663         echo '<meta http-equiv="Cache-Control" content="no-cache">' . "\n";
 664         echo '<meta http-equiv="Refresh" content="0;url=' .$uri . '">' . "\n";
 665         echo '<script type="text/javascript">' . "\n";
 666         echo '//<![CDATA[' . "\n";
 667         echo 'setTimeout("window.location = unescape(\'"' . $uri . '"\')", 2000);' . "\n";
 668         echo '//]]>' . "\n";
 669         echo '</script>' . "\n";
 670         echo '</head>' . "\n";
 671         echo '<body>' . "\n";
 672         echo '<script type="text/javascript">' . "\n";
 673         echo '//<![CDATA[' . "\n";
 674         echo 'document.write(\'<p><a href="' . $uri . '">' . $GLOBALS['strGo'] . '</a></p>\');' . "\n";
 675         echo '//]]>' . "\n";
 676         echo '</script></body></html>' . "\n";
 677
 678     } else {
 679         if (SID) {
 680             if (strpos($uri, '?') === false) {
 681                 header('Location: ' . $uri . '?' . SID);
 682             } else {
 683                 $separator = PMA_get_arg_separator();
 684                 header('Location: ' . $uri . $separator . SID);
 685             }
 686         } else {
 687             session_write_close();
 688             if (headers_sent()) {
 689                 if (function_exists('debug_print_backtrace')) {
 690                     echo '<pre>';
 691                     debug_print_backtrace();
 692                     echo '</pre>';
 693                 }
 694                 trigger_error('PMA_sendHeaderLocation called when headers are already sent!', E_USER_ERROR);
 695             }
 696             // bug #1523784: IE6 does not like 'Refresh: 0', it
 697             // results in a blank page
 698             // but we need it when coming from the cookie login panel)
 699             if (PMA_IS_IIS && defined('PMA_COMING_FROM_COOKIE_LOGIN')) {
 700                 header('Refresh: 0; ' . $uri);
 701             } else {
 702                 header('Location: ' . $uri);
 703             }
 704         }
 705     }
 706 }
 707
 708 /**
 709  * returns array with tables of given db with extended information and grouped
 710  *
 711  * @uses    $cfg['LeftFrameTableSeparator']
 712  * @uses    $cfg['LeftFrameTableLevel']
 713  * @uses    $cfg['ShowTooltipAliasTB']
 714  * @uses    $cfg['NaturalOrder']
 715  * @uses    PMA_backquote()
 716  * @uses    count()
 717  * @uses    array_merge
 718  * @uses    uksort()
 719  * @uses    strstr()
 720  * @uses    explode()
 721  * @param   string  $db     name of db
 722  * @param   string  $tables name of tables
 723  * @param   integer $limit_offset   list offset
 724  * @param   integer $limit_count    max tables to return
 725  * return   array   (recursive) grouped table list
 726  */
 727 function PMA_getTableList($db, $tables = null, $limit_offset = 0, $limit_count = false)
 728 {
 729     $sep = $GLOBALS['cfg']['LeftFrameTableSeparator'];
 730
 731     if (null === $tables) {
 732         $tables = PMA_DBI_get_tables_full($db, false, false, null, $limit_offset, $limit_count);
 733         if ($GLOBALS['cfg']['NaturalOrder']) {
 734             uksort($tables, 'strnatcasecmp');
 735         }
 736     }
 737
 738     if (count($tables) < 1) {
 739         return $tables;
 740     }
 741
 742     $default = array(
 743         'Name'      => '',
 744         'Rows'      => 0,
 745         'Comment'   => '',
 746         'disp_name' => '',
 747     );
 748
 749     $table_groups = array();
 750
 751     // for blobstreaming - list of blobstreaming tables - rajk
 752
 753     // load PMA configuration
 754     $PMA_Config = $_SESSION['PMA_Config'];
 755
 756     // if PMA configuration exists
 757     if (!empty($PMA_Config))
 758         $session_bs_tables = $_SESSION['PMA_Config']->get('BLOBSTREAMING_TABLES');
 759
 760     foreach ($tables as $table_name => $table) {
 761         // if BS tables exist
 762         if (isset($session_bs_tables))
 763             // compare table name to tables in list of blobstreaming tables
 764             foreach ($session_bs_tables as $table_key=>$table_val)
 765                 // if table is in list, skip outer foreach loop
 766                 if ($table_name == $table_key)
 767                     continue 2;
 768
 769         // check for correct row count
 770         if (null === $table['Rows']) {
 771             // Do not check exact row count here,
 772             // if row count is invalid possibly the table is defect
 773             // and this would break left frame;
 774             // but we can check row count if this is a view,
 775             // since PMA_Table::countRecords() returns a limited row count
 776             // in this case.
 777
 778             // set this because PMA_Table::countRecords() can use it
 779             $tbl_is_view = PMA_Table::isView($db, $table['Name']);
 780
 781             if ($tbl_is_view) {
 782                 $table['Rows'] = PMA_Table::countRecords($db, $table['Name'],
 783                         $return = true);
 784             }
 785         }
 786
 787         // in $group we save the reference to the place in $table_groups
 788         // where to store the table info
 789         if ($GLOBALS['cfg']['LeftFrameDBTree']
 790             && $sep && strstr($table_name, $sep))
 791         {
 792             $parts = explode($sep, $table_name);
 793
 794             $group =& $table_groups;
 795             $i = 0;
 796             $group_name_full = '';
 797             while ($i < count($parts) - 1
 798               && $i < $GLOBALS['cfg']['LeftFrameTableLevel']) {
 799                 $group_name = $parts[$i] . $sep;
 800                 $group_name_full .= $group_name;
 801
 802                 if (!isset($group[$group_name])) {
 803                     $group[$group_name] = array();
 804                     $group[$group_name]['is' . $sep . 'group'] = true;
 805                     $group[$group_name]['tab' . $sep . 'count'] = 1;
 806                     $group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
 807                 } elseif (!isset($group[$group_name]['is' . $sep . 'group'])) {
 808                     $table = $group[$group_name];
 809                     $group[$group_name] = array();
 810                     $group[$group_name][$group_name] = $table;
 811                     unset($table);
 812                     $group[$group_name]['is' . $sep . 'group'] = true;
 813                     $group[$group_name]['tab' . $sep . 'count'] = 1;
 814                     $group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
 815                 } else {
 816                     $group[$group_name]['tab' . $sep . 'count']++;
 817                 }
 818                 $group =& $group[$group_name];
 819                 $i++;
 820             }
 821         } else {
 822             if (!isset($table_groups[$table_name])) {
 823                 $table_groups[$table_name] = array();
 824             }
 825             $group =& $table_groups;
 826         }
 827
 828
 829         if ($GLOBALS['cfg']['ShowTooltipAliasTB']
 830           && $GLOBALS['cfg']['ShowTooltipAliasTB'] !== 'nested') {
 831             // switch tooltip and name
 832             $table['Comment'] = $table['Name'];
 833             $table['disp_name'] = $table['Comment'];
 834         } else {
 835             $table['disp_name'] = $table['Name'];
 836         }
 837
 838         $group[$table_name] = array_merge($default, $table);
 839     }
 840
 841     return $table_groups;
 842 }
 843
 844 /* ----------------------- Set of misc functions ----------------------- */
 845
 846
 847 /**
 848  * Adds backquotes on both sides of a database, table or field name.
 849  * and escapes backquotes inside the name with another backquote
 850  *
 851  * example:
 852  * <code>
 853  * echo PMA_backquote('owner`s db'); // `owner``s db`
 854  *
 855  * </code>
 856  *
 857  * @uses    PMA_backquote()
 858  * @uses    is_array()
 859  * @uses    strlen()
 860  * @uses    str_replace()
 861  * @param   mixed    $a_name    the database, table or field name to "backquote"
 862  *                              or array of it
 863  * @param   boolean  $do_it     a flag to bypass this function (used by dump
 864  *                              functions)
 865  * @return  mixed    the "backquoted" database, table or field name if the
 866  *                   current MySQL release is >= 3.23.6, the original one
 867  *                   else
 868  * @access  public
 869  */
 870 function PMA_backquote($a_name, $do_it = true)
 871 {
 872     if (! $do_it) {
 873         return $a_name;
 874     }
 875
 876     if (is_array($a_name)) {
 877          $result = array();
 878          foreach ($a_name as $key => $val) {
 879              $result[$key] = PMA_backquote($val);
 880          }
 881          return $result;
 882     }
 883
 884     // '0' is also empty for php :-(
 885     if (strlen($a_name) && $a_name !== '*') {
 886         return '`' . str_replace('`', '``', $a_name) . '`';
 887     } else {
 888         return $a_name;
 889     }
 890 } // end of the 'PMA_backquote()' function
 891
 892
 893 /**
 894  * Defines the <CR><LF> value depending on the user OS.
 895  *
 896  * @uses    PMA_USR_OS
 897  * @return  string   the <CR><LF> value to use
 898  *
 899  * @access  public
 900  */
 901 function PMA_whichCrlf()
 902 {
 903     $the_crlf = "\n";
 904
 905     // The 'PMA_USR_OS' constant is defined in "./libraries/Config.class.php"
 906     // Win case
 907     if (PMA_USR_OS == 'Win') {
 908         $the_crlf = "\r\n";
 909     }
 910     // Others
 911     else {
 912         $the_crlf = "\n";
 913     }
 914
 915     return $the_crlf;
 916 } // end of the 'PMA_whichCrlf()' function
 917
 918 /**
 919  * Reloads navigation if needed.
 920  *
 921  * @uses    $GLOBALS['reload']
 922  * @uses    $GLOBALS['db']
 923  * @uses    PMA_generate_common_url()
 924  * @global  array  configuration
 925  *
 926  * @access  public
 927  */
 928 function PMA_reloadNavigation()
 929 {
 930     global $cfg;
 931
 932     // Reloads the navigation frame via JavaScript if required
 933     if (isset($GLOBALS['reload']) && $GLOBALS['reload']) {
 934         // one of the reasons for a reload is when a table is dropped
 935         // in this case, get rid of the table limit offset, otherwise
 936         // we have a problem when dropping a table on the last page
 937         // and the offset becomes greater than the total number of tables
 938         unset($_SESSION['userconf']['table_limit_offset']);
 939         echo "\n";
 940         $reload_url = './navigation.php?' . PMA_generate_common_url($GLOBALS['db'], '', '&');
 941         ?>
 942 <script type="text/javascript">
 943 //<![CDATA[
 944 if (typeof(window.parent) != 'undefined'
 945     && typeof(window.parent.frame_navigation) != 'undefined') {
 946     window.parent.goTo('<?php echo $reload_url; ?>');
 947 }
 948 //]]>
 949 </script>
 950         <?php
 951         unset($GLOBALS['reload']);
 952     }
 953 }
 954
 955 /**
 956  * displays the message and the query
 957  * usually the message is the result of the query executed
 958  *
 959  * @param   string  $message    the message to display
 960  * @param   string  $sql_query  the query to display
 961  * @param   string  $type       the type (level) of the message
 962  * @global  array   the configuration array
 963  * @uses    $cfg
 964  * @access  public
 965  */
 966 function PMA_showMessage($message, $sql_query = null, $type = 'notice')
 967 {
 968     global $cfg;
 969
 970     if (null === $sql_query) {
 971         if (! empty($GLOBALS['display_query'])) {
 972             $sql_query = $GLOBALS['display_query'];
 973         } elseif ($cfg['SQP']['fmtType'] == 'none' && ! empty($GLOBALS['unparsed_sql'])) {
 974             $sql_query = $GLOBALS['unparsed_sql'];
 975         } elseif (! empty($GLOBALS['sql_query'])) {
 976             $sql_query = $GLOBALS['sql_query'];
 977         } else {
 978             $sql_query = '';
 979         }
 980     }
 981
 982     // Corrects the tooltip text via JS if required
 983     // @todo this is REALLY the wrong place to do this - very unexpected here
 984     if (strlen($GLOBALS['table']) && $cfg['ShowTooltip']) {
 985         $tooltip = PMA_Table::sGetToolTip($GLOBALS['db'], $GLOBALS['table']);
 986         $uni_tbl = PMA_jsFormat($GLOBALS['db'] . '.' . $GLOBALS['table'], false);
 987         echo "\n";
 988         echo '<script type="text/javascript">' . "\n";
 989         echo '//<![CDATA[' . "\n";
 990         echo "window.parent.updateTableTitle('" . $uni_tbl . "', '" . PMA_jsFormat($tooltip, false) . "');" . "\n";
 991         echo '//]]>' . "\n";
 992         echo '</script>' . "\n";
 993     } // end if ... elseif
 994
 995     // Checks if the table needs to be repaired after a TRUNCATE query.
 996     // @todo what about $GLOBALS['display_query']???
 997     // @todo this is REALLY the wrong place to do this - very unexpected here
 998     if (strlen($GLOBALS['table'])
 999      && $GLOBALS['sql_query'] == 'TRUNCATE TABLE ' . PMA_backquote($GLOBALS['table'])) {
1000         if (PMA_Table::sGetStatusInfo($GLOBALS['db'], $GLOBALS['table'], 'Index_length') > 1024) {
1001             PMA_DBI_try_query('REPAIR TABLE ' . PMA_backquote($GLOBALS['table']));
1002         }
1003     }
1004     unset($tbl_status);
1005
1006     echo '<div align="' . $GLOBALS['cell_align_left'] . '">' . "\n";
1007
1008     if ($message instanceof PMA_Message) {
1009         $message->display();
1010         $type = $message->getLevel();
1011     } else {
1012         echo '<div class="' . $type . '">';
1013         echo PMA_sanitize($message);
1014         if (isset($GLOBALS['special_message'])) {
1015             echo PMA_sanitize($GLOBALS['special_message']);
1016             unset($GLOBALS['special_message']);
1017         }
1018         echo '</div>';
1019     }
1020
1021     if ($cfg['ShowSQL'] == true && ! empty($sql_query)) {
1022         // Html format the query to be displayed
1023         // If we want to show some sql code it is easiest to create it here
1024         /* SQL-Parser-Analyzer */
1025
1026         if (! empty($GLOBALS['show_as_php'])) {
1027             $new_line = '\\n"<br />' . "\n"
1028                 . '&nbsp;&nbsp;&nbsp;&nbsp;. "';
1029             $query_base = htmlspecialchars(addslashes($sql_query));
1030             $query_base = preg_replace('/((\015\012)|(\015)|(\012))/', $new_line, $query_base);
1031         } else {
1032             $query_base = $sql_query;
1033         }
1034
1035         $query_too_big = false;
1036
1037         if (strlen($query_base) > $cfg['MaxCharactersInDisplayedSQL']) {
1038             // when the query is large (for example an INSERT of binary
1039             // data), the parser chokes; so avoid parsing the query
1040             $query_too_big = true;
1041             $query_base = nl2br(htmlspecialchars($sql_query));
1042         } elseif (! empty($GLOBALS['parsed_sql'])
1043          && $query_base == $GLOBALS['parsed_sql']['raw']) {
1044             // (here, use "! empty" because when deleting a bookmark,
1045             // $GLOBALS['parsed_sql'] is set but empty
1046             $parsed_sql = $GLOBALS['parsed_sql'];
1047         } else {
1048             // Parse SQL if needed
1049             $parsed_sql = PMA_SQP_parse($query_base);
1050         }
1051
1052         // Analyze it
1053         if (isset($parsed_sql)) {
1054             $analyzed_display_query = PMA_SQP_analyze($parsed_sql);
1055             // Here we append the LIMIT added for navigation, to
1056             // enable its display. Adding it higher in the code
1057             // to $sql_query would create a problem when
1058             // using the Refresh or Edit links.
1059
1060             // Only append it on SELECTs.
1061
1062             /**
1063              * @todo what would be the best to do when someone hits Refresh:
1064              * use the current LIMITs ?
1065              */
1066
1067             if (isset($analyzed_display_query[0]['queryflags']['select_from'])
1068              && isset($GLOBALS['sql_limit_to_append'])) {
1069                 $query_base = $analyzed_display_query[0]['section_before_limit']
1070                     . "\n" . $GLOBALS['sql_limit_to_append']
1071                     . $analyzed_display_query[0]['section_after_limit'];
1072                 // Need to reparse query
1073                 $parsed_sql = PMA_SQP_parse($query_base);
1074             }
1075         }
1076
1077         if (! empty($GLOBALS['show_as_php'])) {
1078             $query_base = '$sql  = "' . $query_base;
1079         } elseif (! empty($GLOBALS['validatequery'])) {
1080             $query_base = PMA_validateSQL($query_base);
1081         } elseif (isset($parsed_sql)) {
1082             $query_base = PMA_formatSql($parsed_sql, $query_base);
1083         }
1084
1085         // Prepares links that may be displayed to edit/explain the query
1086         // (don't go to default pages, we must go to the page
1087         // where the query box is available)
1088
1089         // Basic url query part
1090         $url_params = array();
1091         if (strlen($GLOBALS['db'])) {
1092             $url_params['db'] = $GLOBALS['db'];
1093             if (strlen($GLOBALS['table'])) {
1094                 $url_params['table'] = $GLOBALS['table'];
1095                 $edit_link = 'tbl_sql.php';
1096             } else {
1097                 $edit_link = 'db_sql.php';
1098             }
1099         } else {
1100             $edit_link = 'server_sql.php';
1101         }
1102
1103         // Want to have the query explained (Mike Beck 2002-05-22)
1104         // but only explain a SELECT (that has not been explained)
1105         /* SQL-Parser-Analyzer */
1106         $explain_link = '';
1107         if (! empty($cfg['SQLQuery']['Explain']) && ! $query_too_big) {
1108             $explain_params = $url_params;
1109             // Detect if we are validating as well
1110             // To preserve the validate uRL data
1111             if (! empty($GLOBALS['validatequery'])) {
1112                 $explain_params['validatequery'] = 1;
1113             }
1114
1115             if (preg_match('@^SELECT[[:space:]]+@i', $sql_query)) {
1116                 $explain_params['sql_query'] = 'EXPLAIN ' . $sql_query;
1117                 $_message = $GLOBALS['strExplain'];
1118             } elseif (preg_match('@^EXPLAIN[[:space:]]+SELECT[[:space:]]+@i', $sql_query)) {
1119                 $explain_params['sql_query'] = substr($sql_query, 8);
1120                 $_message = $GLOBALS['strNoExplain'];
1121             }
1122             if (isset($explain_params['sql_query'])) {
1123                 $explain_link = 'import.php' . PMA_generate_common_url($explain_params);
1124                 $explain_link = ' [' . PMA_linkOrButton($explain_link, $_message) . ']';
1125             }
1126         } //show explain
1127
1128         $url_params['sql_query']  = $sql_query;
1129         $url_params['show_query'] = 1;
1130
1131         if (! empty($cfg['SQLQuery']['Edit']) && ! $query_too_big) {
1132             if ($cfg['EditInWindow'] == true) {
1133                 $onclick = 'window.parent.focus_querywindow(\'' . PMA_jsFormat($sql_query, false) . '\'); return false;';
1134             } else {
1135                 $onclick = '';
1136             }
1137
1138             $edit_link .= PMA_generate_common_url($url_params) . '#querybox';
1139             $edit_link = ' [' . PMA_linkOrButton($edit_link, $GLOBALS['strEdit'], array('onclick' => $onclick)) . ']';
1140         } else {
1141             $edit_link = '';
1142         }
1143
1144         $url_qpart = PMA_generate_common_url($url_params);
1145
1146         // Also we would like to get the SQL formed in some nice
1147         // php-code (Mike Beck 2002-05-22)
1148         if (! empty($cfg['SQLQuery']['ShowAsPHP']) && ! $query_too_big) {
1149             $php_params = $url_params;
1150
1151             if (! empty($GLOBALS['show_as_php'])) {
1152                 $_message = $GLOBALS['strNoPhp'];
1153             } else {
1154                 $php_params['show_as_php'] = 1;
1155                 $_message = $GLOBALS['strPhp'];
1156             }
1157
1158             $php_link = 'import.php' . PMA_generate_common_url($php_params);
1159             $php_link = ' [' . PMA_linkOrButton($php_link, $_message) . ']';
1160
1161             if (isset($GLOBALS['show_as_php'])) {
1162                 $runquery_link = 'import.php' . PMA_generate_common_url($url_params);
1163                 $php_link .= ' [' . PMA_linkOrButton($runquery_link, $GLOBALS['strRunQuery']) . ']';
1164             }
1165         } else {
1166             $php_link = '';
1167         } //show as php
1168
1169         // Refresh query
1170         if (! empty($cfg['SQLQuery']['Refresh'])
1171          && preg_match('@^(SELECT|SHOW)[[:space:]]+@i', $sql_query)) {
1172             $refresh_link = 'import.php' . PMA_generate_common_url($url_params);
1173             $refresh_link = ' [' . PMA_linkOrButton($refresh_link, $GLOBALS['strRefresh']) . ']';
1174         } else {
1175             $refresh_link = '';
1176         } //show as php
1177
1178         if (! empty($cfg['SQLValidator']['use'])
1179          && ! empty($cfg['SQLQuery']['Validate'])) {
1180             $validate_params = $url_params;
1181             if (!empty($GLOBALS['validatequery'])) {
1182                 $validate_message = $GLOBALS['strNoValidateSQL'] ;
1183             } else {
1184                 $validate_params['validatequery'] = 1;
1185                 $validate_message = $GLOBALS['strValidateSQL'] ;
1186             }
1187
1188             $validate_link = 'import.php' . PMA_generate_common_url($validate_params);
1189             $validate_link = ' [' . PMA_linkOrButton($validate_link, $validate_message) . ']';
1190         } else {
1191             $validate_link = '';
1192         } //validator
1193
1194         echo '<code class="sql">';
1195         if ($query_too_big) {
1196             echo substr($query_base, 0, $cfg['MaxCharactersInDisplayedSQL']) . '[...]';
1197         } else {
1198             echo $query_base;
1199         }
1200
1201         //Clean up the end of the PHP
1202         if (! empty($GLOBALS['show_as_php'])) {
1203             echo '";';
1204         }
1205         echo '</code>';
1206
1207         echo '<div class="tools">';
1208         // avoid displaying a Profiling checkbox that could
1209         // be checked, which would reexecute an INSERT, for example
1210         if (! empty($refresh_link)) {
1211             PMA_profilingCheckbox($sql_query);
1212         }
1213         echo $edit_link . $explain_link . $php_link . $refresh_link . $validate_link;
1214         echo '</div>';
1215     }
1216     echo '</div><br />' . "\n";
1217 } // end of the 'PMA_showMessage()' function
1218
1219 /**
1220  * Verifies if current MySQL server supports profiling
1221  *
1222  * @uses    $_SESSION['profiling_supported'] for caching
1223  * @uses    $GLOBALS['server']
1224  * @uses    PMA_DBI_fetch_value()
1225  * @uses    PMA_MYSQL_INT_VERSION
1226  * @uses    defined()
1227  * @access  public
1228  * @return  boolean whether profiling is supported
1229  *
1230  * @author   Marc Delisle
1231  */
1232 function PMA_profilingSupported()
1233 {
1234     if (! PMA_cacheExists('profiling_supported', true)) {
1235         // 5.0.37 has profiling but for example, 5.1.20 does not
1236         // (avoid a trip to the server for MySQL before 5.0.37)
1237         // and do not set a constant as we might be switching servers
1238         if (defined('PMA_MYSQL_INT_VERSION')
1239          && PMA_MYSQL_INT_VERSION >= 50037
1240          && PMA_DBI_fetch_value("SHOW VARIABLES LIKE 'profiling'")) {
1241             PMA_cacheSet('profiling_supported', true, true);
1242         } else {
1243             PMA_cacheSet('profiling_supported', false, true);
1244         }
1245     }
1246
1247     return PMA_cacheGet('profiling_supported', true);
1248 }
1249
1250 /**
1251  * Displays a form with the Profiling checkbox
1252  *
1253  * @param   string  $sql_query
1254  * @access  public
1255  *
1256  * @author   Marc Delisle
1257  */
1258 function PMA_profilingCheckbox($sql_query)
1259 {
1260     if (PMA_profilingSupported()) {
1261         echo '<form action="sql.php" method="post">' . "\n";
1262         echo PMA_generate_common_hidden_inputs($GLOBALS['db'], $GLOBALS['table']);
1263         echo '<input type="hidden" name="sql_query" value="' . htmlspecialchars($sql_query) . '" />' . "\n";
1264         echo '<input type="hidden" name="profiling_form" value="1" />' . "\n";
1265         PMA_generate_html_checkbox('profiling', $GLOBALS['strProfiling'], isset($_SESSION['profiling']), true);
1266         echo '<noscript><input type="submit" value="' . $GLOBALS['strGo'] . '" /></noscript>' . "\n";
1267         echo '</form>' . "\n";
1268     }
1269 }
1270
1271 /**
1272  * Displays the results of SHOW PROFILE
1273  *
1274  * @param    array   the results
1275  * @access  public
1276  *
1277  * @author   Marc Delisle
1278  */
1279 function PMA_profilingResults($profiling_results)
1280 {
1281     echo '<fieldset><legend>' . $GLOBALS['strProfiling'] . '</legend>' . "\n";
1282     echo '<table>' . "\n";
1283     echo ' <tr>' .  "\n";
1284     echo '  <th>' . $GLOBALS['strStatus'] . '</th>' . "\n";
1285     echo '  <th>' . $GLOBALS['strTime'] . '</th>' . "\n";
1286     echo ' </tr>' .  "\n";
1287
1288     foreach($profiling_results as $one_result) {
1289         echo ' <tr>' .  "\n";
1290         echo '<td>' . $one_result['Status'] . '</td>' .  "\n";
1291         echo '<td>' . $one_result['Duration'] . '</td>' .  "\n";
1292     }
1293     echo '</table>' . "\n";
1294     echo '</fieldset>' . "\n";
1295 }
1296
1297 /**
1298  * Formats $value to byte view
1299  *
1300  * @param    double   the value to format
1301  * @param    integer  the sensitiveness
1302  * @param    integer  the number of decimals to retain
1303  *
1304  * @return   array    the formatted value and its unit
1305  *
1306  * @access  public
1307  *
1308  * @author   staybyte
1309  * @version  1.2 - 18 July 2002
1310  */
1311 function PMA_formatByteDown($value, $limes = 6, $comma = 0)
1312 {
1313     $dh           = PMA_pow(10, $comma);
1314     $li           = PMA_pow(10, $limes);
1315     $return_value = $value;
1316     $unit         = $GLOBALS['byteUnits'][0];
1317
1318     for ($d = 6, $ex = 15; $d >= 1; $d--, $ex-=3) {
1319         if (isset($GLOBALS['byteUnits'][$d]) && $value >= $li * PMA_pow(10, $ex)) {
1320             // use 1024.0 to avoid integer overflow on 64-bit machines
1321             $value = round($value / (PMA_pow(1024, $d) / $dh)) /$dh;
1322             $unit = $GLOBALS['byteUnits'][$d];
1323             break 1;
1324         } // end if
1325     } // end for
1326
1327     if ($unit != $GLOBALS['byteUnits'][0]) {
1328         // if the unit is not bytes (as represented in current language)
1329         // reformat with max length of 5
1330         // 4th parameter=true means do not reformat if value < 1
1331         $return_value = PMA_formatNumber($value, 5, $comma, true);
1332     } else {
1333         // do not reformat, just handle the locale
1334         $return_value = PMA_formatNumber($value, 0);
1335     }
1336
1337     return array($return_value, $unit);
1338 } // end of the 'PMA_formatByteDown' function
1339
1340 /**
1341  * Formats $value to the given length and appends SI prefixes
1342  * $comma is not substracted from the length
1343  * with a $length of 0 no truncation occurs, number is only formated
1344  * to the current locale
1345  *
1346  * examples:
1347  * <code>
1348  * echo PMA_formatNumber(123456789, 6);     // 123,457 k
1349  * echo PMA_formatNumber(-123456789, 4, 2); //    -123.46 M
1350  * echo PMA_formatNumber(-0.003, 6);        //      -3 m
1351  * echo PMA_formatNumber(0.003, 3, 3);      //       0.003
1352  * echo PMA_formatNumber(0.00003, 3, 2);    //       0.03 m
1353  * echo PMA_formatNumber(0, 6);             //       0
1354  *
1355  * </code>
1356  * @param   double   $value     the value to format
1357  * @param   integer  $length    the max length
1358  * @param   integer  $comma     the number of decimals to retain
1359  * @param   boolean  $only_down do not reformat numbers below 1
1360  *
1361  * @return  string   the formatted value and its unit
1362  *
1363  * @access  public
1364  *
1365  * @author  staybyte, sebastian mendel
1366  * @version 1.1.0 - 2005-10-27
1367  */
1368 function PMA_formatNumber($value, $length = 3, $comma = 0, $only_down = false)
1369 {
1370     //number_format is not multibyte safe, str_replace is safe
1371     if ($length === 0) {
1372         return str_replace(array(',', '.'),
1373                 array($GLOBALS['number_thousands_separator'], $GLOBALS['number_decimal_separator']),
1374                 number_format($value, $comma));
1375     }
1376
1377     // this units needs no translation, ISO
1378     $units = array(
1379         -8 => 'y',
1380         -7 => 'z',
1381         -6 => 'a',
1382         -5 => 'f',
1383         -4 => 'p',
1384         -3 => 'n',
1385         -2 => '&micro;',
1386         -1 => 'm',
1387         0 => ' ',
1388         1 => 'k',
1389         2 => 'M',
1390         3 => 'G',
1391         4 => 'T',
1392         5 => 'P',
1393         6 => 'E',
1394         7 => 'Z',
1395         8 => 'Y'
1396     );
1397
1398     // we need at least 3 digits to be displayed
1399     if (3 > $length + $comma) {
1400         $length = 3 - $comma;
1401     }
1402
1403     // check for negative value to retain sign
1404     if ($value < 0) {
1405         $sign = '-';
1406         $value = abs($value);
1407     } else {
1408         $sign = '';
1409     }
1410
1411     $dh = PMA_pow(10, $comma);
1412     $li = PMA_pow(10, $length);
1413     $unit = $units[0];
1414
1415     if ($value >= 1) {
1416         for ($d = 8; $d >= 0; $d--) {
1417             if (isset($units[$d]) && $value >= $li * PMA_pow(1000, $d-1)) {
1418                 $value = round($value / (PMA_pow(1000, $d) / $dh)) /$dh;
1419                 $unit = $units[$d];
1420                 break 1;
1421             } // end if
1422         } // end for
1423     } elseif (!$only_down && (float) $value !== 0.0) {
1424         for ($d = -8; $d <= 8; $d++) {
1425             if (isset($units[$d]) && $value <= $li * PMA_pow(1000, $d-1)) {
1426                 $value = round($value / (PMA_pow(1000, $d) / $dh)) /$dh;
1427                 $unit = $units[$d];
1428                 break 1;
1429             } // end if
1430         } // end for
1431     } // end if ($value >= 1) elseif (!$only_down && (float) $value !== 0.0)
1432
1433     //number_format is not multibyte safe, str_replace is safe
1434     $value = str_replace(array(',', '.'),
1435                          array($GLOBALS['number_thousands_separator'], $GLOBALS['number_decimal_separator']),
1436                          number_format($value, $comma));
1437
1438     return $sign . $value . ' ' . $unit;
1439 } // end of the 'PMA_formatNumber' function
1440
1441 /**
1442  * Writes localised date
1443  *
1444  * @param   string   the current timestamp
1445  *
1446  * @return  string   the formatted date
1447  *
1448  * @access  public
1449  */
1450 function PMA_localisedDate($timestamp = -1, $format = '')
1451 {
1452     global $datefmt, $month, $day_of_week;
1453
1454     if ($format == '') {
1455         $format = $datefmt;
1456     }
1457
1458     if ($timestamp == -1) {
1459         $timestamp = time();
1460     }
1461
1462     $date = preg_replace('@%[aA]@', $day_of_week[(int)strftime('%w', $timestamp)], $format);
1463     $date = preg_replace('@%[bB]@', $month[(int)strftime('%m', $timestamp)-1], $date);
1464
1465     return strftime($date, $timestamp);
1466 } // end of the 'PMA_localisedDate()' function
1467
1468
1469 /**
1470  * returns a tab for tabbed navigation.
1471  * If the variables $link and $args ar left empty, an inactive tab is created
1472  *
1473  * @uses    $GLOBALS['PMA_PHP_SELF']
1474  * @uses    $GLOBALS['strEmpty']
1475  * @uses    $GLOBALS['strDrop']
1476  * @uses    $GLOBALS['active_page']
1477  * @uses    $GLOBALS['url_query']
1478  * @uses    $cfg['MainPageIconic']
1479  * @uses    $GLOBALS['pmaThemeImage']
1480  * @uses    PMA_generate_common_url()
1481  * @uses    E_USER_NOTICE
1482  * @uses    htmlentities()
1483  * @uses    urlencode()
1484  * @uses    sprintf()
1485  * @uses    trigger_error()
1486  * @uses    array_merge()
1487  * @uses    basename()
1488  * @param   array   $tab    array with all options
1489  * @return  string  html code for one tab, a link if valid otherwise a span
1490  * @access  public
1491  */
1492 function PMA_getTab($tab)
1493 {
1494     // default values
1495     $defaults = array(
1496         'text'      => '',
1497         'class'     => '',
1498         'active'    => false,
1499         'link'      => '',
1500         'sep'       => '?',
1501         'attr'      => '',
1502         'args'      => '',
1503         'warning'   => '',
1504         'fragment'  => '',
1505     );
1506
1507     $tab = array_merge($defaults, $tab);
1508
1509     // determine additionnal style-class
1510     if (empty($tab['class'])) {
1511         if ($tab['text'] == $GLOBALS['strEmpty']
1512             || $tab['text'] == $GLOBALS['strDrop']) {
1513             $tab['class'] = 'caution';
1514         } elseif (! empty($tab['active'])
1515          || PMA_isValid($GLOBALS['active_page'], 'identical', $tab['link'])) {
1516             $tab['class'] = 'active';
1517         } elseif (empty($GLOBALS['active_page'])
1518           && basename($GLOBALS['PMA_PHP_SELF']) == $tab['link']
1519           && empty($tab['warning'])) {
1520             $tab['class'] = 'active';
1521         }
1522     }
1523
1524     if (!empty($tab['warning'])) {
1525         $tab['class'] .= ' warning';
1526         $tab['attr'] .= ' title="' . htmlspecialchars($tab['warning']) . '"';
1527     }
1528
1529     // build the link
1530     if (!empty($tab['link'])) {
1531         $tab['link'] = htmlentities($tab['link']);
1532         $tab['link'] = $tab['link'] . $tab['sep']
1533             .(empty($GLOBALS['url_query']) ?
1534                 PMA_generate_common_url() : $GLOBALS['url_query']);
1535         if (! empty($tab['args'])) {
1536             foreach ($tab['args'] as $param => $value) {
1537                 $tab['link'] .= PMA_get_arg_separator('html') . urlencode($param) . '='
1538                     . urlencode($value);
1539             }
1540         }
1541     }
1542
1543     if (! empty($tab['fragment'])) {
1544         $tab['link'] .= $tab['fragment'];
1545     }
1546
1547     // display icon, even if iconic is disabled but the link-text is missing
1548     if (($GLOBALS['cfg']['MainPageIconic'] || empty($tab['text']))
1549         && isset($tab['icon'])) {
1550         // avoid generating an alt tag, because it only illustrates
1551         // the text that follows and if browser does not display
1552         // images, the text is duplicated
1553         $image = '<img class="icon" src="' . htmlentities($GLOBALS['pmaThemeImage'])
1554             .'%1$s" width="16" height="16" alt="" />%2$s';
1555         $tab['text'] = sprintf($image, htmlentities($tab['icon']), $tab['text']);
1556     }
1557     // check to not display an empty link-text
1558     elseif (empty($tab['text'])) {
1559         $tab['text'] = '?';
1560         trigger_error('empty linktext in function ' . __FUNCTION__ . '()',
1561             E_USER_NOTICE);
1562     }
1563
1564     $out = '<li' . ($tab['class'] == 'active' ? ' class="active"' : '') . '>';
1565
1566     if (!empty($tab['link'])) {
1567         $out .= '<a class="tab' . htmlentities($tab['class']) . '"'
1568             .' href="' . $tab['link'] . '" ' . $tab['attr'] . '>'
1569             . $tab['text'] . '</a>';
1570     } else {
1571         $out .= '<span class="tab' . htmlentities($tab['class']) . '">'
1572             . $tab['text'] . '</span>';
1573     }
1574
1575     $out .= '</li>';
1576     return $out;
1577 } // end of the 'PMA_getTab()' function
1578
1579 /**
1580  * returns html-code for a tab navigation
1581  *
1582  * @uses    PMA_getTab()
1583  * @uses    htmlentities()
1584  * @param   array   $tabs   one element per tab
1585  * @param   string  $tag_id id used for the html-tag
1586  * @return  string  html-code for tab-navigation
1587  */
1588 function PMA_getTabs($tabs, $tag_id = 'topmenu')
1589 {
1590     $tab_navigation =
1591          '<div id="' . htmlentities($tag_id) . 'container">' . "\n"
1592         .'<ul id="' . htmlentities($tag_id) . '">' . "\n";
1593
1594     foreach ($tabs as $tab) {
1595         $tab_navigation .= PMA_getTab($tab) . "\n";
1596     }
1597
1598     $tab_navigation .=
1599          '</ul>' . "\n"
1600         .'<div class="clearfloat"></div>'
1601         .'</div>' . "\n";
1602
1603     return $tab_navigation;
1604 }
1605
1606
1607 /**
1608  * Displays a link, or a button if the link's URL is too large, to
1609  * accommodate some browsers' limitations
1610  *
1611  * @param  string  the URL
1612  * @param  string  the link message
1613  * @param  mixed   $tag_params  string: js confirmation
1614  *                              array: additional tag params (f.e. style="")
1615  * @param  boolean $new_form    we set this to false when we are already in
1616  *                              a  form, to avoid generating nested forms
1617  *
1618  * @return string  the results to be echoed or saved in an array
1619  */
1620 function PMA_linkOrButton($url, $message, $tag_params = array(),
1621     $new_form = true, $strip_img = false, $target = '')
1622 {
1623     if (! is_array($tag_params)) {
1624         $tmp = $tag_params;
1625         $tag_params = array();
1626         if (!empty($tmp)) {
1627             $tag_params['onclick'] = 'return confirmLink(this, \'' . $tmp . '\')';
1628         }
1629         unset($tmp);
1630     }
1631     if (! empty($target)) {
1632         $tag_params['target'] = htmlentities($target);
1633     }
1634
1635     $tag_params_strings = array();
1636     foreach ($tag_params as $par_name => $par_value) {
1637         // htmlspecialchars() only on non javascript
1638         $par_value = substr($par_name, 0, 2) == 'on'
1639             ? $par_value
1640             : htmlspecialchars($par_value);
1641         $tag_params_strings[] = $par_name . '="' . $par_value . '"';
1642     }
1643
1644     // previously the limit was set to 2047, it seems 1000 is better
1645     if (strlen($url) <= 1000) {
1646         // no whitespace within an <a> else Safari will make it part of the link
1647         $ret = "\n" . '<a href="' . $url . '" '
1648             . implode(' ', $tag_params_strings) . '>'
1649             . $message . '</a>' . "\n";
1650     } else {
1651         // no spaces (linebreaks) at all
1652         // or after the hidden fields
1653         // IE will display them all
1654
1655         // add class=link to submit button
1656         if (empty($tag_params['class'])) {
1657             $tag_params['class'] = 'link';
1658         }
1659
1660         // decode encoded url separators
1661         $separator   = PMA_get_arg_separator();
1662         // on most places separator is still hard coded ...
1663         if ($separator !== '&') {
1664             // ... so always replace & with $separator
1665             $url         = str_replace(htmlentities('&'), $separator, $url);
1666             $url         = str_replace('&', $separator, $url);
1667         }
1668         $url         = str_replace(htmlentities($separator), $separator, $url);
1669         // end decode
1670
1671         $url_parts   = parse_url($url);
1672         $query_parts = explode($separator, $url_parts['query']);
1673         if ($new_form) {
1674             $ret = '<form action="' . $url_parts['path'] . '" class="link"'
1675                  . ' method="post"' . $target . ' style="display: inline;">';
1676             $subname_open   = '';
1677             $subname_close  = '';
1678             $submit_name    = '';
1679         } else {
1680             $query_parts[] = 'redirect=' . $url_parts['path'];
1681             if (empty($GLOBALS['subform_counter'])) {
1682                 $GLOBALS['subform_counter'] = 0;
1683             }
1684             $GLOBALS['subform_counter']++;
1685             $ret            = '';
1686             $subname_open   = 'subform[' . $GLOBALS['subform_counter'] . '][';
1687             $subname_close  = ']';
1688             $submit_name    = ' name="usesubform[' . $GLOBALS['subform_counter'] . ']"';
1689         }
1690         foreach ($query_parts as $query_pair) {
1691             list($eachvar, $eachval) = explode('=', $query_pair);
1692             $ret .= '<input type="hidden" name="' . $subname_open . $eachvar
1693                 . $subname_close . '" value="'
1694                 . htmlspecialchars(urldecode($eachval)) . '" />';
1695         } // end while
1696
1697         if (stristr($message, '<img')) {
1698             if ($strip_img) {
1699                 $message = trim(strip_tags($message));
1700                 $ret .= '<input type="submit"' . $submit_name . ' '
1701                     . implode(' ', $tag_params_strings)
1702                     . ' value="' . htmlspecialchars($message) . '" />';
1703             } else {
1704                 $ret .= '<input type="image"' . $submit_name . ' '
1705                     . implode(' ', $tag_params_strings)
1706                     . ' src="' . preg_replace(
1707                         '/^.*\ssrc="([^"]*)".*$/si', '\1', $message) . '"'
1708                     . ' value="' . htmlspecialchars(
1709                         preg_replace('/^.*\salt="([^"]*)".*$/si', '\1',
1710                             $message))
1711                     . '" />';
1712             }
1713         } else {
1714             $message = trim(strip_tags($message));
1715             $ret .= '<input type="submit"' . $submit_name . ' '
1716                 . implode(' ', $tag_params_strings)
1717                 . ' value="' . htmlspecialchars($message) . '" />';
1718         }
1719         if ($new_form) {
1720             $ret .= '</form>';
1721         }
1722     } // end if... else...
1723
1724         return $ret;
1725 } // end of the 'PMA_linkOrButton()' function
1726
1727
1728 /**
1729  * Returns a given timespan value in a readable format.
1730  *
1731  * @uses    $GLOBALS['timespanfmt']
1732  * @uses    sprintf()
1733  * @uses    floor()
1734  * @param  int     the timespan
1735  *
1736  * @return string  the formatted value
1737  */
1738 function PMA_timespanFormat($seconds)
1739 {
1740     $return_string = '';
1741     $days = floor($seconds / 86400);
1742     if ($days > 0) {
1743         $seconds -= $days * 86400;
1744     }
1745     $hours = floor($seconds / 3600);
1746     if ($days > 0 || $hours > 0) {
1747         $seconds -= $hours * 3600;
1748     }
1749     $minutes = floor($seconds / 60);
1750     if ($days > 0 || $hours > 0 || $minutes > 0) {
1751         $seconds -= $minutes * 60;
1752     }
1753     return sprintf($GLOBALS['timespanfmt'], (string)$days, (string)$hours, (string)$minutes, (string)$seconds);
1754 }
1755
1756 /**
1757  * Takes a string and outputs each character on a line for itself. Used
1758  * mainly for horizontalflipped display mode.
1759  * Takes care of special html-characters.
1760  * Fulfills todo-item
1761  * http://sf.net/tracker/?func=detail&aid=544361&group_id=23067&atid=377411
1762  *
1763  * @todo    add a multibyte safe function PMA_STR_split()
1764  * @uses    strlen
1765  * @param   string   The string
1766  * @param   string   The Separator (defaults to "<br />\n")
1767  *
1768  * @access  public
1769  * @author  Garvin Hicking <me@supergarv.de>
1770  * @return  string      The flipped string
1771  */
1772 function PMA_flipstring($string, $Separator = "<br />\n")
1773 {
1774     $format_string = '';
1775     $charbuff = false;
1776
1777     for ($i = 0; $i < strlen($string); $i++) {
1778         $char = $string{$i};
1779         $append = false;
1780
1781         if ($char == '&') {
1782             $format_string .= $charbuff;
1783             $charbuff = $char;
1784             $append = true;
1785         } elseif (!empty($charbuff)) {
1786             $charbuff .= $char;
1787         } elseif ($char == ';' && !empty($charbuff)) {
1788             $format_string .= $charbuff;
1789             $charbuff = false;
1790             $append = true;
1791         } else {
1792             $format_string .= $char;
1793             $append = true;
1794         }
1795
1796         if ($append && ($i != strlen($string))) {
1797             $format_string .= $Separator;
1798         }
1799     }
1800
1801     return $format_string;
1802 }
1803
1804
1805 /**
1806  * Function added to avoid path disclosures.
1807  * Called by each script that needs parameters, it displays
1808  * an error message and, by default, stops the execution.
1809  *
1810  * Not sure we could use a strMissingParameter message here,
1811  * would have to check if the error message file is always available
1812  *
1813  * @todo    localize error message
1814  * @todo    use PMA_fatalError() if $die === true?
1815  * @uses    PMA_getenv()
1816  * @uses    header_meta_style.inc.php
1817  * @uses    $GLOBALS['PMA_PHP_SELF']
1818  * basename
1819  * @param   array   The names of the parameters needed by the calling
1820  *                  script.
1821  * @param   boolean Stop the execution?
1822  *                  (Set this manually to false in the calling script
1823  *                   until you know all needed parameters to check).
1824  * @param   boolean Whether to include this list in checking for special params.
1825  * @global  string  path to current script
1826  * @global  boolean flag whether any special variable was required
1827  *
1828  * @access  public
1829  * @author  Marc Delisle (lem9@users.sourceforge.net)
1830  */
1831 function PMA_checkParameters($params, $die = true, $request = true)
1832 {
1833     global $checked_special;
1834
1835     if (!isset($checked_special)) {
1836         $checked_special = false;
1837     }
1838
1839     $reported_script_name = basename($GLOBALS['PMA_PHP_SELF']);
1840     $found_error = false;
1841     $error_message = '';
1842
1843     foreach ($params as $param) {
1844         if ($request && $param != 'db' && $param != 'table') {
1845             $checked_special = true;
1846         }
1847
1848         if (!isset($GLOBALS[$param])) {
1849             $error_message .= $reported_script_name
1850                 . ': Missing parameter: ' . $param
1851                 . ' <a href="./Documentation.html#faqmissingparameters"'
1852                 . ' target="documentation"> (FAQ 2.8)</a><br />';
1853             $found_error = true;
1854         }
1855     }
1856     if ($found_error) {
1857         /**
1858          * display html meta tags
1859          */
1860         require_once './libraries/header_meta_style.inc.php';
1861         echo '</head><body><p>' . $error_message . '</p></body></html>';
1862         if ($die) {
1863             exit();
1864         }
1865     }
1866 } // end function
1867
1868 /**
1869  * Function to generate unique condition for specified row.
1870  *
1871  * @uses    $GLOBALS['analyzed_sql'][0]
1872  * @uses    PMA_DBI_field_flags()
1873  * @uses    PMA_backquote()
1874  * @uses    PMA_sqlAddslashes()
1875  * @uses    stristr()
1876  * @uses    bin2hex()
1877  * @uses    preg_replace()
1878  * @param   resource    $handle         current query result
1879  * @param   integer     $fields_cnt     number of fields
1880  * @param   array       $fields_meta    meta information about fields
1881  * @param   array       $row            current row
1882  * @param   boolean     $force_unique   generate condition only on pk or unique
1883  *
1884  * @access  public
1885  * @author  Michal Cihar (michal@cihar.com) and others...
1886  * @return  string      calculated condition
1887  */
1888 function PMA_getUniqueCondition($handle, $fields_cnt, $fields_meta, $row, $force_unique=false)
1889 {
1890     $primary_key          = '';
1891     $unique_key           = '';
1892     $nonprimary_condition = '';
1893     $preferred_condition = '';
1894
1895     for ($i = 0; $i < $fields_cnt; ++$i) {
1896         $condition   = '';
1897         $field_flags = PMA_DBI_field_flags($handle, $i);
1898         $meta        = $fields_meta[$i];
1899
1900         // do not use a column alias in a condition
1901         if (! isset($meta->orgname) || ! strlen($meta->orgname)) {
1902             $meta->orgname = $meta->name;
1903
1904             if (isset($GLOBALS['analyzed_sql'][0]['select_expr'])
1905               && is_array($GLOBALS['analyzed_sql'][0]['select_expr'])) {
1906                 foreach ($GLOBALS['analyzed_sql'][0]['select_expr']
1907                   as $select_expr) {
1908                     // need (string) === (string)
1909                     // '' !== 0 but '' == 0
1910                     if ((string) $select_expr['alias'] === (string) $meta->name) {
1911                         $meta->orgname = $select_expr['column'];
1912                         break;
1913                     } // end if
1914                 } // end foreach
1915             }
1916         }
1917
1918         // Do not use a table alias in a condition.
1919         // Test case is:
1920         // select * from galerie x WHERE
1921         //(select count(*) from galerie y where y.datum=x.datum)>1
1922         //
1923         // But orgtable is present only with mysqli extension so the
1924         // fix is only for mysqli.
1925         if (isset($meta->orgtable) && $meta->table != $meta->orgtable) {
1926             $meta->table = $meta->orgtable;
1927         }
1928
1929         // to fix the bug where float fields (primary or not)
1930         // can't be matched because of the imprecision of
1931         // floating comparison, use CONCAT
1932         // (also, the syntax "CONCAT(field) IS NULL"
1933         // that we need on the next "if" will work)
1934         if ($meta->type == 'real') {
1935             $condition = ' CONCAT(' . PMA_backquote($meta->table) . '.'
1936                 . PMA_backquote($meta->orgname) . ') ';
1937         } else {
1938             $condition = ' ' . PMA_backquote($meta->table) . '.'
1939                 . PMA_backquote($meta->orgname) . ' ';
1940         } // end if... else...
1941
1942         if (!isset($row[$i]) || is_null($row[$i])) {
1943             $condition .= 'IS NULL AND';
1944         } else {
1945             // timestamp is numeric on some MySQL 4.1
1946             if ($meta->numeric && $meta->type != 'timestamp') {
1947                 $condition .= '= ' . $row[$i] . ' AND';
1948             } elseif (($meta->type == 'blob' || $meta->type == 'string')
1949                 // hexify only if this is a true not empty BLOB or a BINARY
1950                  && stristr($field_flags, 'BINARY')
1951                  && !empty($row[$i])) {
1952                     // do not waste memory building a too big condition
1953                     if (strlen($row[$i]) < 1000) {
1954                         // use a CAST if possible, to avoid problems
1955                         // if the field contains wildcard characters % or _
1956                         $condition .= '= CAST(0x' . bin2hex($row[$i])
1957                             . ' AS BINARY) AND';
1958                     } else {
1959                         // this blob won't be part of the final condition
1960                         $condition = '';
1961                     }
1962             } else {
1963                 $condition .= '= \''
1964                     . PMA_sqlAddslashes($row[$i], false, true) . '\' AND';
1965             }
1966         }
1967         if ($meta->primary_key > 0) {
1968             $primary_key .= $condition;
1969         } elseif ($meta->unique_key > 0) {
1970             $unique_key  .= $condition;
1971         }
1972         $nonprimary_condition .= $condition;
1973     } // end for
1974
1975     // Correction University of Virginia 19991216:
1976     // prefer primary or unique keys for condition,
1977     // but use conjunction of all values if no primary key
1978     if ($primary_key) {
1979         $preferred_condition = $primary_key;
1980     } elseif ($unique_key) {
1981         $preferred_condition = $unique_key;
1982     } elseif (! $force_unique) {
1983         $preferred_condition = $nonprimary_condition;
1984     }
1985
1986     return preg_replace('|\s?AND$|', '', $preferred_condition);
1987 } // end function
1988
1989 /**
1990  * Generate a button or image tag
1991  *
1992  * @uses    PMA_USR_BROWSER_AGENT
1993  * @uses    $GLOBALS['pmaThemeImage']
1994  * @uses    $GLOBALS['cfg']['PropertiesIconic']
1995  * @param   string      name of button element
1996  * @param   string      class of button element
1997  * @param   string      name of image element
1998  * @param   string      text to display
1999  * @param   string      image to display
2000  *
2001  * @access  public
2002  * @author  Michal Cihar (michal@cihar.com)
2003  */
2004 function PMA_buttonOrImage($button_name, $button_class, $image_name, $text,
2005     $image)
2006 {
2007     if (false === $GLOBALS['cfg']['PropertiesIconic']) {
2008         echo ' <input type="submit" name="' . $button_name . '"'
2009                 .' value="' . htmlspecialchars($text) . '"'
2010                 .' title="' . htmlspecialchars($text) . '" />' . "\n";
2011         return;
2012     }
2013
2014     /* Opera has trouble with <input type="image"> */
2015     /* IE has trouble with <button> */
2016     if (PMA_USR_BROWSER_AGENT != 'IE') {
2017         echo '<button class="' . $button_class . '" type="submit"'
2018             .' name="' . $button_name . '" value="' . htmlspecialchars($text) . '"'
2019             .' title="' . htmlspecialchars($text) . '">' . "\n"
2020             . PMA_getIcon($image, $text)
2021             .'</button>' . "\n";
2022     } else {
2023         echo '<input type="image" name="' . $image_name . '" value="'
2024             . htmlspecialchars($text) . '" title="' . htmlspecialchars($text) . '" src="' . $GLOBALS['pmaThemeImage']
2025             . $image . '" />'
2026             . ($GLOBALS['cfg']['PropertiesIconic'] === 'both' ? '&nbsp;' . htmlspecialchars($text) : '') . "\n";
2027     }
2028 } // end function
2029
2030 /**
2031  * Generate a pagination selector for browsing resultsets
2032  *
2033  * @todo $url is not javascript escaped!?
2034  * @uses    $GLOBALS['strPageNumber']
2035  * @uses    range()
2036  * @param   string      URL for the JavaScript
2037  * @param   string      Number of rows in the pagination set
2038  * @param   string      current page number
2039  * @param   string      number of total pages
2040  * @param   string      If the number of pages is lower than this
2041  *                      variable, no pages will be omitted in
2042  *                      pagination
2043  * @param   string      How many rows at the beginning should always
2044  *                      be shown?
2045  * @param   string      How many rows at the end should always
2046  *                      be shown?
2047  * @param   string      Percentage of calculation page offsets to
2048  *                      hop to a next page
2049  * @param   string      Near the current page, how many pages should
2050  *                      be considered "nearby" and displayed as
2051  *                      well?
2052  * @param   string      The prompt to display (sometimes empty)
2053  *
2054  * @access  public
2055  * @author  Garvin Hicking (pma@supergarv.de)
2056  */
2057 function PMA_pageselector($url, $rows, $pageNow = 1, $nbTotalPage = 1,
2058     $showAll = 200, $sliceStart = 5, $sliceEnd = 5, $percent = 20,
2059     $range = 10, $prompt = '')
2060 {
2061     $increment = floor($nbTotalPage / $percent);
2062     $pageNowMinusRange = ($pageNow - $range);
2063     $pageNowPlusRange = ($pageNow + $range);
2064
2065     $gotopage = $prompt
2066               . ' <select name="pos" onchange="goToUrl(this, \''
2067               . $url . '\');">' . "\n";
2068     if ($nbTotalPage < $showAll) {
2069         $pages = range(1, $nbTotalPage);
2070     } else {
2071         $pages = array();
2072
2073         // Always show first X pages
2074         for ($i = 1; $i <= $sliceStart; $i++) {
2075             $pages[] = $i;
2076         }
2077
2078         // Always show last X pages
2079         for ($i = $nbTotalPage - $sliceEnd; $i <= $nbTotalPage; $i++) {
2080             $pages[] = $i;
2081         }
2082
2083         // garvin: Based on the number of results we add the specified
2084         // $percent percentage to each page number,
2085         // so that we have a representing page number every now and then to
2086         // immediately jump to specific pages.
2087         // As soon as we get near our currently chosen page ($pageNow -
2088         // $range), every page number will be shown.
2089         $i = $sliceStart;
2090         $x = $nbTotalPage - $sliceEnd;
2091         $met_boundary = false;
2092         while ($i <= $x) {
2093             if ($i >= $pageNowMinusRange && $i <= $pageNowPlusRange) {
2094                 // If our pageselector comes near the current page, we use 1
2095                 // counter increments
2096                 $i++;
2097                 $met_boundary = true;
2098             } else {
2099                 // We add the percentage increment to our current page to
2100                 // hop to the next one in range
2101                 $i += $increment;
2102
2103                 // Make sure that we do not cross our boundaries.
2104                 if ($i > $pageNowMinusRange && ! $met_boundary) {
2105                     $i = $pageNowMinusRange;
2106                 }
2107             }
2108
2109             if ($i > 0 && $i <= $x) {
2110                 $pages[] = $i;
2111             }
2112         }
2113
2114         // Since because of ellipsing of the current page some numbers may be double,
2115         // we unify our array:
2116         sort($pages);
2117         $pages = array_unique($pages);
2118     }
2119
2120     foreach ($pages as $i) {
2121         if ($i == $pageNow) {
2122             $selected = 'selected="selected" style="font-weight: bold"';
2123         } else {
2124             $selected = '';
2125         }
2126         $gotopage .= '                <option ' . $selected . ' value="' . (($i - 1) * $rows) . '">' . $i . '</option>' . "\n";
2127     }
2128
2129     $gotopage .= ' </select><noscript><input type="submit" value="' . $GLOBALS['strGo'] . '" /></noscript>';
2130
2131     return $gotopage;
2132 } // end function
2133
2134
2135 /**
2136  * Generate navigation for a list
2137  *
2138  * @todo    use $pos from $_url_params
2139  * @uses    $GLOBALS['strPageNumber']
2140  * @uses    range()
2141  * @param   integer     number of elements in the list
2142  * @param   integer     current position in the list
2143  * @param   array       url parameters
2144  * @param   string      script name for form target
2145  * @param   string      target frame
2146  * @param   integer     maximum number of elements to display from the list
2147  *
2148  * @access  public
2149  */
2150 function PMA_listNavigator($count, $pos, $_url_params, $script, $frame, $max_count) {
2151
2152     if ($max_count < $count) {
2153         echo 'frame_navigation' == $frame ? '<div id="navidbpageselector">' . "\n" : '';
2154         echo $GLOBALS['strPageNumber'];
2155         echo 'frame_navigation' == $frame ? '<br />' : ' ';
2156
2157         // Move to the beginning or to the previous page
2158         if ($pos > 0) {
2159             // loic1: patch #474210 from Gosha Sakovich - part 1
2160             if ($GLOBALS['cfg']['NavigationBarIconic']) {
2161                 $caption1 = '&lt;&lt;';
2162                 $caption2 = ' &lt; ';
2163                 $title1   = ' title="' . $GLOBALS['strPos1'] . '"';
2164                 $title2   = ' title="' . $GLOBALS['strPrevious'] . '"';
2165             } else {
2166                 $caption1 = $GLOBALS['strPos1'] . ' &lt;&lt;';
2167                 $caption2 = $GLOBALS['strPrevious'] . ' &lt;';
2168                 $title1   = '';
2169                 $title2   = '';
2170             } // end if... else...
2171             $_url_params['pos'] = 0;
2172             echo '<a' . $title1 . ' href="' . $script
2173                 . PMA_generate_common_url($_url_params) . '" target="' . $frame . '">'
2174                 . $caption1 . '</a>';
2175             $_url_params['pos'] = $pos - $max_count;
2176             echo '<a' . $title2 . ' href="' . $script
2177                 . PMA_generate_common_url($_url_params) . '" target="' . $frame . '">'
2178                 . $caption2 . '</a>';
2179         }
2180
2181         echo "\n", '<form action="./', basename($script), '" method="post" target="', $frame, '">', "\n";
2182         echo PMA_generate_common_hidden_inputs($_url_params);
2183         echo PMA_pageselector(
2184             $script . PMA_generate_common_url($_url_params) . '&',
2185                 $max_count,
2186                 floor(($pos + 1) / $max_count) + 1,
2187                 ceil($count / $max_count));
2188         echo '</form>';
2189
2190         if ($pos + $max_count < $count) {
2191             if ($GLOBALS['cfg']['NavigationBarIconic']) {
2192                 $caption3 = ' &gt; ';
2193                 $caption4 = '&gt;&gt;';
2194                 $title3   = ' title="' . $GLOBALS['strNext'] . '"';
2195                 $title4   = ' title="' . $GLOBALS['strEnd'] . '"';
2196             } else {
2197                 $caption3 = '&gt; ' . $GLOBALS['strNext'];
2198                 $caption4 = '&gt;&gt; ' . $GLOBALS['strEnd'];
2199                 $title3   = '';
2200                 $title4   = '';
2201             } // end if... else...
2202             $_url_params['pos'] = $pos + $max_count;
2203             echo '<a' . $title3 . ' href="' . $script
2204                 . PMA_generate_common_url($_url_params) . '" target="' . $frame . '">'
2205                 . $caption3 . '</a>';
2206             $_url_params['pos'] = floor($count / $max_count) * $max_count;
2207             if ($_url_params['pos'] == $count) {
2208                 $_url_params['pos'] = $count - $max_count;
2209             }
2210             echo '<a' . $title4 . ' href="' . $script
2211                 . PMA_generate_common_url($_url_params) . '" target="' . $frame . '">'
2212                 . $caption4 . '</a>';
2213         }
2214         echo "\n";
2215         if ('frame_navigation' == $frame) {
2216             echo '</div>' . "\n";
2217         }
2218     }
2219 }
2220
2221 /**
2222  * replaces %u in given path with current user name
2223  *
2224  * example:
2225  * <code>
2226  * $user_dir = PMA_userDir('/var/pma_tmp/%u/'); // '/var/pma_tmp/root/'
2227  *
2228  * </code>
2229  * @uses    $cfg['Server']['user']
2230  * @uses    substr()
2231  * @uses    str_replace()
2232  * @param   string  $dir with wildcard for user
2233  * @return  string  per user directory
2234  */
2235 function PMA_userDir($dir)
2236 {
2237     // add trailing slash
2238     if (substr($dir, -1) != '/') {
2239         $dir .= '/';
2240     }
2241
2242     return str_replace('%u', $GLOBALS['cfg']['Server']['user'], $dir);
2243 }
2244
2245 /**
2246  * returns html code for db link to default db page
2247  *
2248  * @uses    $cfg['DefaultTabDatabase']
2249  * @uses    $GLOBALS['db']
2250  * @uses    $GLOBALS['strJumpToDB']
2251  * @uses    PMA_generate_common_url()
2252  * @uses    PMA_unescape_mysql_wildcards()
2253  * @uses    strlen()
2254  * @uses    sprintf()
2255  * @uses    htmlspecialchars()
2256  * @param   string  $database
2257  * @return  string  html link to default db page
2258  */
2259 function PMA_getDbLink($database = null)
2260 {
2261     if (!strlen($database)) {
2262         if (!strlen($GLOBALS['db'])) {
2263             return '';
2264         }
2265         $database = $GLOBALS['db'];
2266     } else {
2267         $database = PMA_unescape_mysql_wildcards($database);
2268     }
2269
2270     return '<a href="' . $GLOBALS['cfg']['DefaultTabDatabase'] . '?' . PMA_generate_common_url($database) . '"'
2271         .' title="' . sprintf($GLOBALS['strJumpToDB'], htmlspecialchars($database)) . '">'
2272         .htmlspecialchars($database) . '</a>';
2273 }
2274
2275 /**
2276  * Displays a lightbulb hint explaining a known external bug
2277  * that affects a functionality
2278  *
2279  * @uses    PMA_MYSQL_INT_VERSION
2280  * @uses    $GLOBALS['strKnownExternalBug']
2281  * @uses    PMA_showHint()
2282  * @uses    sprintf()
2283  * @param   string  $functionality localized message explaining the func.
2284  * @param   string  $component  'mysql' (eventually, 'php')
2285  * @param   string  $minimum_version of this component
2286  * @param   string  $bugref  bug reference for this component
2287  */
2288 function PMA_externalBug($functionality, $component, $minimum_version, $bugref)
2289 {
2290     if ($component == 'mysql' && PMA_MYSQL_INT_VERSION < $minimum_version) {
2291         echo PMA_showHint(sprintf($GLOBALS['strKnownExternalBug'], $functionality, 'http://bugs.mysql.com/' . $bugref));
2292     }
2293 }
2294
2295 /**
2296  * Generates and echoes an HTML checkbox
2297  *
2298  * @param   string  $html_field_name the checkbox HTML field
2299  * @param   string  $label
2300  * @param   boolean $checked is it initially checked?
2301  * @param   boolean $onclick should it submit the form on click?
2302  */
2303 function PMA_generate_html_checkbox($html_field_name, $label, $checked, $onclick) {
2304
2305     echo '<input type="checkbox" name="' . $html_field_name . '" id="' . $html_field_name . '"' . ($checked ? ' checked="checked"' : '') . ($onclick ? ' onclick="this.form.submit();"' : '') . ' /><label for="' . $html_field_name . '">' . $label . '</label>';
2306 }
2307
2308 /**
2309  * Generates and echoes a set of radio HTML fields
2310  *
2311  * @uses    htmlspecialchars()
2312  * @param   string  $html_field_name the radio HTML field
2313  * @param   array   $choices the choices values and labels
2314  * @param   string  $checked_choice the choice to check by default
2315  * @param   boolean $line_break whether to add an HTML line break after a choice
2316  * @param   boolean $escape_label whether to use htmlspecialchars() on label
2317  * @param   string  $class enclose each choice with a div of this class
2318  */
2319 function PMA_generate_html_radio($html_field_name, $choices, $checked_choice = '', $line_break = true, $escape_label = true, $class='') {
2320     foreach ($choices as $choice_value => $choice_label) {
2321         if (! empty($class)) {
2322             echo '<div class="' . $class . '">';
2323         }
2324         $html_field_id = $html_field_name . '_' . $choice_value;
2325         echo '<input type="radio" name="' . $html_field_name . '" id="' . $html_field_id . '" value="' . htmlspecialchars($choice_value) . '"';
2326         if ($choice_value == $checked_choice) {
2327             echo ' checked="checked"';
2328         }
2329         echo ' />' . "\n";
2330         echo '<label for="' . $html_field_id . '">' . ($escape_label ? htmlspecialchars($choice_label)  : $choice_label) . '</label>';
2331         if ($line_break) {
2332             echo '<br />';
2333         }
2334         if (! empty($class)) {
2335             echo '</div>';
2336         }
2337         echo "\n";
2338     }
2339 }
2340
2341 /**
2342  * Generates and echoes an HTML dropdown
2343  *
2344  * @uses    htmlspecialchars()
2345  * @param   string  $select_name
2346  * @param   array   $choices the choices values
2347  * @param   string  $active_choice the choice to select by default
2348  * @todo    support titles
2349  */
2350 function PMA_generate_html_dropdown($select_name, $choices, $active_choice)
2351 {
2352     $result = '<select name="' . htmlspecialchars($select_name) . '" id="' . htmlspecialchars($select_name) . '">"' . "\n";
2353     foreach ($choices as $one_choice) {
2354         $result .= '<option value="' . htmlspecialchars($one_choice) . '"';
2355         if ($one_choice == $active_choice) {
2356             $result .= ' selected="selected"';
2357         }
2358         $result .= '>' . htmlspecialchars($one_choice) . '</option>' . "\n";
2359     }
2360     $result .= '</select>' . "\n";
2361     echo $result;
2362 }
2363
2364 /**
2365  * Generates a slider effect (Mootools)
2366  * Takes care of generating the initial <div> and the link
2367  * controlling the slider; you have to generate the </div> yourself
2368  * after the sliding section.
2369  *
2370  * @uses    $GLOBALS['cfg']['InitialSlidersState']
2371  * @param   string  $id the id of the <div> on which to apply the effect
2372  * @param   string  $message the message to show as a link
2373  */
2374 function PMA_generate_slider_effect($id, $message)
2375 {
2376     ?>
2377 <script type="text/javascript">
2378 // <![CDATA[
2379 window.addEvent('domready', function(){
2380     var status = {
2381         'true': '- ',
2382         'false': '+ '
2383     };
2384
2385     var anchor<?php echo $id; ?> = new Element('a', {
2386         'id': 'toggle_<?php echo $id; ?>',
2387         'href': '#',
2388         'events': {
2389             'click': function(){
2390                 mySlide<?php echo $id; ?>.toggle();
2391             }
2392         }
2393     });
2394
2395     anchor<?php echo $id; ?>.appendText('<?php echo $message; ?>');
2396     anchor<?php echo $id; ?>.injectBefore('<?php echo $id; ?>');
2397
2398     var slider_status<?php echo $id; ?> = new Element('span', {
2399         'id': 'slider_status_<?php echo $id; ?>'
2400     });
2401     slider_status<?php echo $id; ?>.appendText('<?php echo $GLOBALS['cfg']['InitialSlidersState'] == 'closed' ? '+' : '-';?> ');
2402     slider_status<?php echo $id; ?>.injectBefore('toggle_<?php echo $id; ?>');
2403
2404     var mySlide<?php echo $id; ?> = new Fx.Slide('<?php echo $id; ?>');
2405     <?php
2406     if ($GLOBALS['cfg']['InitialSlidersState'] == 'closed') {
2407         ?>
2408     mySlide<?php echo $id; ?>.hide();
2409         <?php
2410     }
2411     ?>
2412     mySlide<?php echo $id; ?>.addEvent('complete', function() {
2413                 $('slider_status_<?php echo $id; ?>').set('html', status[mySlide<?php echo $id; ?>.open]);
2414                     });
2415
2416     $('<?php echo $id; ?>').style.display="block";
2417 });
2418     document.write('<div id="<?php echo $id; ?>" <?php echo $GLOBALS['cfg']['InitialSlidersState'] == 'closed' ? ' style="display: none;"' : ''; ?>>');
2419     //]]>
2420     </script>
2421     <noscript>
2422     <div id="<?php echo $id; ?>">
2423     </noscript>
2424     <?php
2425 }
2426
2427 /**
2428  * Cache information in the session
2429  *
2430  * @param unknown_type $var
2431  * @param unknown_type $val
2432  * @param unknown_type $server
2433  * @return mixed
2434  */
2435 function PMA_cacheExists($var, $server = 0)
2436 {
2437     if (true === $server) {
2438         $server = $GLOBALS['server'];
2439     }
2440     return isset($_SESSION['cache']['server_' . $server][$var]);
2441 }
2442
2443 /**
2444  * Cache information in the session
2445  *
2446  * @param unknown_type $var
2447  * @param unknown_type $val
2448  * @param unknown_type $server
2449  * @return mixed
2450  */
2451 function PMA_cacheGet($var, $server = 0)
2452 {
2453     if (true === $server) {
2454         $server = $GLOBALS['server'];
2455     }
2456     if (isset($_SESSION['cache']['server_' . $server][$var])) {
2457         return $_SESSION['cache']['server_' . $server][$var];
2458     } else {
2459         return null;
2460     }
2461 }
2462
2463 /**
2464  * Cache information in the session
2465  *
2466  * @param unknown_type $var
2467  * @param unknown_type $val
2468  * @param unknown_type $server
2469  * @return mixed
2470  */
2471 function PMA_cacheSet($var, $val = null, $server = 0)
2472 {
2473     if (true === $server) {
2474         $server = $GLOBALS['server'];
2475     }
2476     $_SESSION['cache']['server_' . $server][$var] = $val;
2477 }
2478
2479 /**
2480  * Converts a bit value to printable format;
2481  * in MySQL a BIT field can be from 1 to 64 bits so we need this
2482  * function because in PHP, decbin() supports only 32 bits
2483  *
2484  * @uses    ceil()
2485  * @uses    decbin()
2486  * @uses    ord()
2487  * @uses    substr()
2488  * @uses    sprintf()
2489  * @param   numeric $value coming from a BIT field
2490  * @param   integer $length
2491  * @return  string  the printable value
2492  */
2493 function PMA_printable_bit_value($value, $length) {
2494     $printable = '';
2495     for ($i = 0; $i < ceil($length / 8); $i++) {
2496         $printable .= sprintf('%08d', decbin(ord(substr($value, $i, 1))));
2497     }
2498     $printable = substr($printable, -$length);
2499     return $printable;
2500 }
2501
2502 /**
2503  * Extracts the various parts from a field type spec
2504  *
2505  * @uses    strpos()
2506  * @uses    chop()
2507  * @uses    substr()
2508  * @param   string $fieldspec
2509  * @return  array associative array containing type, spec_in_brackets
2510  *          and possibly enum_set_values (another array)
2511  * @author  Marc Delisle
2512  * @author  Joshua Hogendorn
2513  */
2514 function PMA_extractFieldSpec($fieldspec) {
2515     $first_bracket_pos = strpos($fieldspec, '(');
2516     if ($first_bracket_pos) {
2517         $spec_in_brackets = chop(substr($fieldspec, $first_bracket_pos + 1, (strpos($fieldspec, ')') - $first_bracket_pos - 1)));
2518         // convert to lowercase just to be sure
2519         $type = strtolower(chop(substr($fieldspec, 0, $first_bracket_pos)));
2520     } else {
2521         $type = $fieldspec;
2522         $spec_in_brackets = '';
2523     }
2524
2525     if ('enum' == $type || 'set' == $type) {
2526         // Define our working vars
2527         $enum_set_values = array();
2528         $working = "";
2529         $in_string = false;
2530         $index = 0;
2531
2532         // While there is another character to process
2533         while (isset($fieldspec[$index])) {
2534             // Grab the char to look at
2535             $char = $fieldspec[$index];
2536
2537             // If it is a single quote, needs to be handled specially
2538             if ($char == "'") {
2539                 // If we are not currently in a string, begin one
2540                 if (! $in_string) {
2541                     $in_string = true;
2542                     $working = "";
2543                 // Otherwise, it may be either an end of a string, or a 'double quote' which can be handled as-is
2544                 } else {
2545                 // Check out the next character (if possible)
2546                     $has_next = isset($fieldspec[$index + 1]);
2547                     $next = $has_next ? $fieldspec[$index + 1] : null;
2548
2549                 // If we have reached the end of our 'working' string (because there are no more chars, or the next char is not another quote)
2550                     if (! $has_next || $next != "'") {
2551                         $enum_set_values[] = $working;
2552                         $in_string = false;
2553
2554                     // Otherwise, this is a 'double quote', and can be added to the working string
2555                     } elseif ($next == "'") {
2556                         $working .= "'";
2557                         // Skip the next char; we already know what it is
2558                         $index++;
2559                     }
2560                 }
2561             // escaping of a quote?
2562             } elseif ('\\' == $char && isset($fieldspec[$index + 1]) && "'" == $fieldspec[$index + 1]) {
2563                 $working .= "'";
2564                 $index++;
2565             // Otherwise, add it to our working string like normal
2566             } else {
2567                 $working .= $char;
2568             }
2569             // Increment character index
2570             $index++;
2571         } // end while
2572     } else {
2573         $enum_set_values = array();
2574     }
2575
2576     return array(
2577         'type' => $type,
2578         'spec_in_brackets' => $spec_in_brackets,
2579         'enum_set_values'  => $enum_set_values
2580     );
2581 }
2582
2583 /**
2584  * Verifies if this table's engine supports foreign keys
2585  *
2586  * @uses    strtoupper()
2587  * @param   string $engine
2588  * @return  boolean
2589  */
2590 function PMA_foreignkey_supported($engine) {
2591     $engine = strtoupper($engine);
2592     if ('INNODB' == $engine || 'PBXT' == $engine) {
2593         return true;
2594     } else {
2595         return false;
2596     }
2597 }
2598
2599 /**
2600  * Replaces some characters by a displayable equivalent
2601  *
2602  * @uses    str_replace()
2603  * @param   string $content
2604  * @return  string the content with characters replaced
2605  */
2606 function PMA_replace_binary_contents($content) {
2607     $result = str_replace("\x00", '\0', $content);
2608     $result = str_replace("\x08", '\b', $result);
2609     $result = str_replace("\x0a", '\n', $result);
2610     $result = str_replace("\x0d", '\r', $result);
2611     $result = str_replace("\x1a", '\Z', $result);
2612     return $result;
2613 }
2614 ?>