libraries/database_interface.lib.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 /**
   6  * Common Option Constants For DBI Functions
   7  */
   8 // PMA_DBI_try_query()
   9 define('PMA_DBI_QUERY_STORE',       1);  // Force STORE_RESULT method, ignored by classic MySQL.
  10 define('PMA_DBI_QUERY_UNBUFFERED',  2);  // Do not read whole query
  11 // PMA_DBI_get_variable()
  12 define('PMA_DBI_GETVAR_SESSION', 1);
  13 define('PMA_DBI_GETVAR_GLOBAL', 2);
  14
  15 /**
  16  * Loads the mysql extensions if it is not loaded yet
  17  *
  18  * @param   string  $extension  mysql extension to load
  19  */
  20 function PMA_DBI_checkAndLoadMysqlExtension( $extension = 'mysql' ) {
  21     if ( ! function_exists( $extension . '_connect' ) ) {
  22         PMA_dl( $extension );
  23         // check whether mysql is available
  24         if ( ! function_exists( $extension . '_connect' ) ) {
  25             return false;
  26         }
  27     }
  28
  29     return true;
  30 }
  31
  32
  33 /**
  34  * check for requested extension
  35  */
  36 if ( ! PMA_DBI_checkAndLoadMysqlExtension( $GLOBALS['cfg']['Server']['extension'] ) ) {
  37
  38     // if it fails try alternative extension ...
  39     // and display an error ...
  40
  41     // TODO 2.7.1: add different messages for alternativ extension
  42     // and complete fail (no alternativ extension too)
  43     $GLOBALS['PMA_errors'][] =
  44         sprintf( PMA_sanitize( $GLOBALS['strCantLoad'] ),
  45             $GLOBALS['cfg']['Server']['extension'] )
  46         .' - <a href="./Documentation.html#faqmysql" target="documentation">'
  47         .$GLOBALS['strDocu'] . '</a>';
  48
  49     if ( $GLOBALS['cfg']['Server']['extension'] === 'mysql' ) {
  50         $alternativ_extension = 'mysqli';
  51     } else {
  52         $alternativ_extension = 'mysql';
  53     }
  54
  55     if ( ! PMA_DBI_checkAndLoadMysqlExtension( $alternativ_extension ) ) {
  56         // if alternativ fails too ...
  57         header( 'Location: error.php'
  58                 . '?lang='  . urlencode( $available_languages[$lang][2] )
  59                 . '&char='  . urlencode( $charset )
  60                 . '&dir='   . urlencode( $text_dir )
  61                 . '&type='  . urlencode( $strError )
  62                 . '&error=' . urlencode(
  63                     sprintf( $GLOBALS['strCantLoad'],
  64                         $GLOBALS['cfg']['Server']['extension'] )
  65                     .' - [a@./Documentation.html#faqmysql@documentation]'
  66                     .$GLOBALS['strDocu'] . '[/a]' )
  67                 . '&' . SID
  68                  );
  69         exit();
  70     }
  71
  72     $GLOBALS['cfg']['Server']['extension'] = $alternativ_extension;
  73     unset( $alternativ_extension );
  74 }
  75
  76 /**
  77  * Including The DBI Plugin
  78  */
  79 require_once('./libraries/dbi/' . $GLOBALS['cfg']['Server']['extension'] . '.dbi.lib.php');
  80
  81 /**
  82  * Common Functions
  83  */
  84 function PMA_DBI_query($query, $link = null, $options = 0) {
  85     $res = PMA_DBI_try_query($query, $link, $options)
  86         or PMA_mysqlDie(PMA_DBI_getError($link), $query);
  87     return $res;
  88 }
  89
  90 /**
  91  * converts charset of a mysql message, usally coming from mysql_error(),
  92  * into PMA charset, usally UTF-8
  93  * uses language to charset mapping from mysql/share/errmsg.txt
  94  * and charset names to ISO charset from information_schema.CHARACTER_SETS
  95  *
  96  * @uses    $GLOBALS['cfg']['IconvExtraParams']
  97  * @uses    $GLOBALS['charset']     as target charset
  98  * @uses    PMA_DBI_fetch_value()   to get server_language
  99  * @uses    preg_match()            to filter server_language
 100  * @uses    in_array()
 101  * @uses    function_exists()       to check for a convert function
 102  * @uses    iconv()                 to convert message
 103  * @uses    libiconv()              to convert message
 104  * @uses    recode_string()         to convert message
 105  * @uses    mb_convert_encoding()   to convert message
 106  * @param   string  $message
 107  * @return  string  $message
 108  */
 109 function PMA_DBI_convert_message( $message ) {
 110     // latin always last!
 111     $encodings = array(
 112         'japanese'      => 'EUC-JP', //'ujis',
 113         'japanese-sjis' => 'Shift-JIS', //'sjis',
 114         'korean'        => 'EUC-KR', //'euckr',
 115         'russian'       => 'KOI8-R', //'koi8r',
 116         'ukrainian'     => 'KOI8-U', //'koi8u',
 117         'greek'         => 'ISO-8859-7', //'greek',
 118         'serbian'       => 'CP1250', //'cp1250',
 119         'estonian'      => 'ISO-8859-13', //'latin7',
 120         'slovak'        => 'ISO-8859-2', //'latin2',
 121         'czech'         => 'ISO-8859-2', //'latin2',
 122         'hungarian'     => 'ISO-8859-2', //'latin2',
 123         'polish'        => 'ISO-8859-2', //'latin2',
 124         'romanian'      => 'ISO-8859-2', //'latin2',
 125         'spanish'       => 'CP1252', //'latin1',
 126         'swedish'       => 'CP1252', //'latin1',
 127         'italian'       => 'CP1252', //'latin1',
 128         'norwegian-ny'  => 'CP1252', //'latin1',
 129         'norwegian'     => 'CP1252', //'latin1',
 130         'portuguese'    => 'CP1252', //'latin1',
 131         'danish'        => 'CP1252', //'latin1',
 132         'dutch'         => 'CP1252', //'latin1',
 133         'english'       => 'CP1252', //'latin1',
 134         'french'        => 'CP1252', //'latin1',
 135         'german'        => 'CP1252', //'latin1',
 136     );
 137
 138     if ( $server_language = PMA_DBI_fetch_value( 'SHOW VARIABLES LIKE \'language\';', 0, 1 ) ) {
 139         $found = array();
 140         if ( preg_match( '&(?:\\\|\\/)([^\\\\\/]*)(?:\\\|\\/)$&i', $server_language, $found )) {
 141             $server_language = $found[1];
 142         }
 143     }
 144
 145     if ( ! empty( $server_language ) && isset( $encodings[$server_language] ) ) {
 146         if ( function_exists( 'iconv' ) ) {
 147             if ((@stristr(PHP_OS, 'AIX')) && (@strcasecmp(ICONV_IMPL, 'unknown') == 0) && (@strcasecmp(ICONV_VERSION, 'unknown') == 0)) {
 148                 require_once('./liraries/iconv_wrapper.lib.php');
 149                 $message = PMA_aix_iconv_wrapper( $encodings[$server_language],
 150                     $GLOBALS['charset'] . $GLOBALS['cfg']['IconvExtraParams'], $message);
 151             } else {
 152                 $message = iconv( $encodings[$server_language],
 153                     $GLOBALS['charset'] . $GLOBALS['cfg']['IconvExtraParams'], $message);
 154             }
 155         } elseif ( function_exists( 'recode_string' ) ) {
 156             $message = recode_string( $encodings[$server_language] . '..'  . $GLOBALS['charset'],
 157                 $message );
 158         } elseif ( function_exists( 'libiconv' ) ) {
 159             $message = libiconv( $encodings[$server_language], $GLOBALS['charset'], $message );
 160         } elseif ( function_exists( 'mb_convert_encoding' ) ) {
 161             // do not try unsupported charsets
 162             if ( ! in_array( $server_language, array( 'ukrainian', 'greek', 'serbian' ) ) ) {
 163                 $message = mb_convert_encoding( $message, $GLOBALS['charset'],
 164                     $encodings[$server_language] );
 165             }
 166         }
 167     } else {
 168         // lang not found, try all
 169         // what TODO ?
 170     }
 171
 172     return $message;
 173 }
 174
 175 /**
 176  * returns array with database names
 177  *
 178  * @return  array   $databases
 179  */
 180 function PMA_DBI_get_dblist($link = null)
 181 {
 182     $dbs_array = PMA_DBI_fetch_result('SHOW DATABASES;', $link);
 183
 184     // Before MySQL 4.0.2, SHOW DATABASES could send the
 185     // whole list, so check if we really have access:
 186     if (PMA_MYSQL_INT_VERSION < 40002 || !empty($GLOBALS['cfg']['Server']['hide_db'])) {
 187         foreach ($dbs_array as $key => $db) {
 188             if (!@PMA_DBI_select_db($db, $link) || (!empty($GLOBALS['cfg']['Server']['hide_db']) && preg_match('/' . $GLOBALS['cfg']['Server']['hide_db'] . '/', $db))) {
 189                 unset( $dbs_array[$key] );
 190             }
 191         }
 192         // re-index values
 193         $dbs_array = array_values( $dbs_array );
 194     }
 195
 196     return $dbs_array;
 197 }
 198
 199 /**
 200  * returns array with table names for given db
 201  *
 202  * @param   string  $database   name of database
 203  * @param   mixed   $link       mysql link resource|object
 204  * @return  array   tables names
 205  */
 206 function PMA_DBI_get_tables($database, $link = null)
 207 {
 208     return PMA_DBI_fetch_result('SHOW TABLES FROM ' . PMA_backquote($database) . ';',
 209         null, 0, $link, PMA_DBI_QUERY_STORE);
 210 }
 211
 212 /**
 213  * returns array of all tables in given db or dbs
 214  * this function expects unqoted names:
 215  * RIGHT: my_database
 216  * WRONG: `my_database`
 217  * WRONG: my\_database
 218  * if $tbl_is_group is true, $table is used as filter for table names
 219  * if $tbl_is_group is 'comment, $table is used as filter for table comments
 220  *
 221  * <code>
 222  * PMA_DBI_get_tables_full( 'my_database' );
 223  * PMA_DBI_get_tables_full( 'my_database', 'my_table' ) );
 224  * PMA_DBI_get_tables_full( 'my_database', 'my_tables_', true ) );
 225  * PMA_DBI_get_tables_full( 'my_database', 'my_tables_', 'comment' ) );
 226  * </code>
 227  *
 228  * @uses    PMA_MYSQL_INT_VERSION
 229  * @uses    PMA_DBI_fetch_result()
 230  * @uses    PMA_escape_mysql_wildcards()
 231  * @uses    PMA_backquote()
 232  * @uses    is_array()
 233  * @uses    addslashes()
 234  * @uses    strpos()
 235  * @uses    strtoupper()
 236  * @param   string          $databases      database
 237  * @param   string          $table          table
 238  * @param   boolean|string  $tbl_is_group   $table is a table group
 239  * @param   resource        $link           mysql link
 240  * @return  array           list of tbales in given db(s)
 241  */
 242 function PMA_DBI_get_tables_full($database, $table = false,
 243     $tbl_is_group = false, $link = null)
 244 {
 245     // prepare and check parameters
 246     if ( ! is_array($database) ) {
 247         $databases = array(addslashes($database));
 248     } else {
 249         $databases = array_map('addslashes', $database);
 250     }
 251
 252     $tables = array();
 253
 254     if ( PMA_MYSQL_INT_VERSION >= 50002 ) {
 255         // get table information from information_schema
 256         if ( $table ) {
 257             if ( true === $tbl_is_group ) {
 258                 $sql_where_table = 'AND `TABLE_NAME` LIKE \''
 259                     . PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
 260             } elseif ( 'comment' === $tbl_is_group ) {
 261                 $sql_where_table = 'AND `TABLE_COMMENT` LIKE \''
 262                     . PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
 263             } else {
 264                 $sql_where_table = 'AND `TABLE_NAME` = \'' . addslashes($table) . '\'';
 265             }
 266         } else {
 267             $sql_where_table = '';
 268         }
 269
 270         // for PMA bc:
 271         // `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
 272         $sql = '
 273              SELECT *,
 274                     `TABLE_SCHEMA`       AS `Db`,
 275                     `TABLE_NAME`         AS `Name`,
 276                     `ENGINE`             AS `Engine`,
 277                     `ENGINE`             AS `Type`,
 278                     `VERSION`            AS `Version`,
 279                     `ROW_FORMAT`         AS `Row_format`,
 280                     `TABLE_ROWS`         AS `Rows`,
 281                     `AVG_ROW_LENGTH`     AS `Avg_row_length`,
 282                     `DATA_LENGTH`        AS `Data_length`,
 283                     `MAX_DATA_LENGTH`    AS `Max_data_length`,
 284                     `INDEX_LENGTH`       AS `Index_length`,
 285                     `DATA_FREE`          AS `Data_free`,
 286                     `AUTO_INCREMENT`     AS `Auto_increment`,
 287                     `CREATE_TIME`        AS `Create_time`,
 288                     `UPDATE_TIME`        AS `Update_time`,
 289                     `CHECK_TIME`         AS `Check_time`,
 290                     `TABLE_COLLATION`    AS `Collation`,
 291                     `CHECKSUM`           AS `Checksum`,
 292                     `CREATE_OPTIONS`     AS `Create_options`,
 293                     `TABLE_COMMENT`      AS `Comment`
 294                FROM `information_schema`.`TABLES`
 295               WHERE `TABLE_SCHEMA` IN (\'' . implode("', '", $databases) . '\')
 296                 ' . $sql_where_table;
 297         $tables = PMA_DBI_fetch_result($sql, array('TABLE_SCHEMA', 'TABLE_NAME'),
 298             null, $link);
 299         unset( $sql_where_table, $sql );
 300     } else {
 301         foreach ( $databases as $each_database ) {
 302             if ( true === $tbl_is_group ) {
 303                 $sql = 'SHOW TABLE STATUS FROM '
 304                     . PMA_backquote($each_database)
 305                     .' LIKE \'' . PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
 306             } else {
 307                 $sql = 'SHOW TABLE STATUS FROM '
 308                     . PMA_backquote($each_database) . ';';
 309             }
 310             $each_tables = PMA_DBI_fetch_result($sql, 'Name', null, $link);
 311             foreach ( $each_tables as $table_name => $each_table ) {
 312                 if ( 'comment' === $tbl_is_group
 313                   && 0 === strpos($each_table['Comment'], $table) )
 314                 {
 315                     // remove table from list
 316                     unset( $each_tables[$table_name] );
 317                     continue;
 318                 }
 319
 320                 if ( ! isset( $each_tables[$table_name]['Type'] )
 321                   && isset( $each_tables[$table_name]['Engine'] ) ) {
 322                     // pma BC, same parts of PMA still uses 'Type'
 323                     $each_tables[$table_name]['Type']
 324                         =& $each_tables[$table_name]['Engine'];
 325                 } elseif ( ! isset( $each_tables[$table_name]['Engine'] )
 326                   && isset( $each_tables[$table_name]['Type'] ) ) {
 327                     // old MySQL reports Type, newer MySQL reports Engine
 328                     $each_tables[$table_name]['Engine']
 329                         =& $each_tables[$table_name]['Type'];
 330                 }
 331
 332                 // MySQL forward compatibility
 333                 // so pma could use this array as if every server is of version >5.0
 334                 $each_tables[$table_name]['TABLE_SCHEMA']      = $each_database;
 335                 $each_tables[$table_name]['TABLE_NAME']        =& $each_tables[$table_name]['Name'];
 336                 $each_tables[$table_name]['ENGINE']            =& $each_tables[$table_name]['Engine'];
 337                 $each_tables[$table_name]['VERSION']           =& $each_tables[$table_name]['Version'];
 338                 $each_tables[$table_name]['ROW_FORMAT']        =& $each_tables[$table_name]['Row_format'];
 339                 $each_tables[$table_name]['TABLE_ROWS']        =& $each_tables[$table_name]['Rows'];
 340                 $each_tables[$table_name]['AVG_ROW_LENGTH']    =& $each_tables[$table_name]['Avg_row_length'];
 341                 $each_tables[$table_name]['DATA_LENGTH']       =& $each_tables[$table_name]['Data_length'];
 342                 $each_tables[$table_name]['MAX_DATA_LENGTH']   =& $each_tables[$table_name]['Max_data_length'];
 343                 $each_tables[$table_name]['INDEX_LENGTH']      =& $each_tables[$table_name]['Index_length'];
 344                 $each_tables[$table_name]['DATA_FREE']         =& $each_tables[$table_name]['Data_free'];
 345                 $each_tables[$table_name]['AUTO_INCREMENT']    =& $each_tables[$table_name]['Auto_increment'];
 346                 $each_tables[$table_name]['CREATE_TIME']       =& $each_tables[$table_name]['Create_time'];
 347                 $each_tables[$table_name]['UPDATE_TIME']       =& $each_tables[$table_name]['Update_time'];
 348                 $each_tables[$table_name]['CHECK_TIME']        =& $each_tables[$table_name]['Check_time'];
 349                 $each_tables[$table_name]['TABLE_COLLATION']   =& $each_tables[$table_name]['Collation'];
 350                 $each_tables[$table_name]['CHECKSUM']          =& $each_tables[$table_name]['Checksum'];
 351                 $each_tables[$table_name]['CREATE_OPTIONS']    =& $each_tables[$table_name]['Create_options'];
 352                 $each_tables[$table_name]['TABLE_COMMENT']     =& $each_tables[$table_name]['Comment'];
 353
 354                 if ( strtoupper( $each_tables[$table_name]['Comment'] ) === 'VIEW' ) {
 355                     $each_tables[$table_name]['TABLE_TYPE'] = 'VIEW';
 356                 } else {
 357                     // TODO difference between 'TEMPORARY' and 'BASE TABLE'
 358                     // but how to detect?
 359                     $each_tables[$table_name]['TABLE_TYPE'] = 'BASE TABLE';
 360                 }
 361             }
 362
 363             $tables[$each_database] = $each_tables;
 364         }
 365     }
 366
 367     if ( $GLOBALS['cfg']['NaturalOrder'] ) {
 368         foreach ( $tables as $key => $val ) {
 369             uksort($tables[$key], 'strnatcasecmp');
 370         }
 371     }
 372
 373     if (! is_array($database)) {
 374         if (isset($tables[$database])) {
 375             return $tables[$database];
 376         } elseif (isset($tables[strtolower($database)])) {
 377             // on windows with lower_case_table_names = 1
 378             // MySQL returns
 379             // with SHOW DATABASES or information_schema.SCHEMATA: `Test`
 380             // but information_schema.TABLES gives `test`
 381             // bug #1436171
 382             // sf.net/tracker/?func=detail&aid=1436171&group_id=23067&atid=377408
 383             return $tables[strtolower($database)];
 384         } else {
 385             return $tables;
 386         }
 387     } else {
 388         return $tables;
 389     }
 390 }
 391
 392 /**
 393  * returns array with databases containing extended infos about them
 394  *
 395  * @param   string          $databases      database
 396  * @param   boolean         $force_stats    retrieve stats also for MySQL < 5
 397  * @param   resource        $link           mysql link
 398  * @return  array       $databases
 399  */
 400 function PMA_DBI_get_databases_full( $database = null, $force_stats = false, $link = null ) {
 401
 402     // initialize to avoid errors when there are no databases
 403     $databases = array();
 404
 405     if ( PMA_MYSQL_INT_VERSION >= 50002 ) {
 406         // get table information from information_schema
 407         if ( $database ) {
 408             $sql_where_schema = 'WHERE `SCHEMA_NAME` LIKE \''
 409                 . addslashes( $database ) . '\'';
 410         } else {
 411             $sql_where_schema = '';
 412         }
 413
 414         // for PMA bc:
 415         // `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
 416         $sql = '
 417              SELECT `information_schema`.`SCHEMATA`.*,
 418                     COUNT(`information_schema`.`TABLES`.`TABLE_SCHEMA`)
 419                         AS `SCHEMA_TABLES`,
 420                     SUM(`information_schema`.`TABLES`.`TABLE_ROWS`)
 421                         AS `SCHEMA_TABLE_ROWS`,
 422                     SUM(`information_schema`.`TABLES`.`DATA_LENGTH`)
 423                         AS `SCHEMA_DATA_LENGTH`,
 424                     SUM(`information_schema`.`TABLES`.`MAX_DATA_LENGTH`)
 425                         AS `SCHEMA_MAX_DATA_LENGTH`,
 426                     SUM(`information_schema`.`TABLES`.`INDEX_LENGTH`)
 427                         AS `SCHEMA_INDEX_LENGTH`,
 428                     SUM(`information_schema`.`TABLES`.`DATA_LENGTH`
 429                       + `information_schema`.`TABLES`.`INDEX_LENGTH`)
 430                         AS `SCHEMA_LENGTH`,
 431                     SUM(`information_schema`.`TABLES`.`DATA_FREE`)
 432                         AS `SCHEMA_DATA_FREE`
 433                FROM `information_schema`.`SCHEMATA`
 434           LEFT JOIN `information_schema`.`TABLES`
 435                  ON `information_schema`.`TABLES`.`TABLE_SCHEMA`
 436                   = `information_schema`.`SCHEMATA`.`SCHEMA_NAME`
 437               ' . $sql_where_schema . '
 438            GROUP BY `information_schema`.`SCHEMATA`.`SCHEMA_NAME`';
 439         $databases = PMA_DBI_fetch_result( $sql, 'SCHEMA_NAME', null, $link );
 440         unset( $sql_where_schema, $sql );
 441     } else {
 442         foreach ( PMA_DBI_get_dblist( $link ) as $database_name ) {
 443             // MySQL forward compatibility
 444             // so pma could use this array as if every server is of version >5.0
 445             $databases[$database_name]['SCHEMA_NAME']      = $database_name;
 446
 447             if ( $force_stats ) {
 448                 require_once 'mysql_charsets.lib.php';
 449
 450                 $databases[$database_name]['DEFAULT_COLLATION_NAME']
 451                     = PMA_getDbCollation( $database_name );
 452
 453                 // get additonal info about tables
 454                 $databases[$database_name]['SCHEMA_TABLES']          = 0;
 455                 $databases[$database_name]['SCHEMA_TABLE_ROWS']      = 0;
 456                 $databases[$database_name]['SCHEMA_DATA_LENGTH']     = 0;
 457                 $databases[$database_name]['SCHEMA_MAX_DATA_LENGTH'] = 0;
 458                 $databases[$database_name]['SCHEMA_INDEX_LENGTH']    = 0;
 459                 $databases[$database_name]['SCHEMA_LENGTH']          = 0;
 460                 $databases[$database_name]['SCHEMA_DATA_FREE']       = 0;
 461
 462                 $res = PMA_DBI_query('SHOW TABLE STATUS FROM ' . PMA_backquote( $database_name ) . ';');
 463                 while ( $row = PMA_DBI_fetch_assoc( $res ) ) {
 464                     $databases[$database_name]['SCHEMA_TABLES']++;
 465                     $databases[$database_name]['SCHEMA_TABLE_ROWS']
 466                         += $row['Rows'];
 467                     $databases[$database_name]['SCHEMA_DATA_LENGTH']
 468                         += $row['Data_length'];
 469                     $databases[$database_name]['SCHEMA_MAX_DATA_LENGTH']
 470                         += $row['Max_data_length'];
 471                     $databases[$database_name]['SCHEMA_INDEX_LENGTH']
 472                         += $row['Index_length'];
 473                     $databases[$database_name]['SCHEMA_DATA_FREE']
 474                         += $row['Data_free'];
 475                     $databases[$database_name]['SCHEMA_LENGTH']
 476                         += $row['Data_length'] + $row['Index_length'];
 477                 }
 478                 PMA_DBI_free_result( $res );
 479                 unset( $res );
 480             }
 481         }
 482     }
 483
 484     if ( $GLOBALS['cfg']['NaturalOrder'] ) {
 485         uksort( $databases, 'strnatcasecmp' );
 486     }
 487
 488     return $databases;
 489 }
 490
 491 /**
 492  * returns detailed array with all columns for given table in database,
 493  * or all tables/databases
 494  *
 495  * @param   string  $database   name of database
 496  * @param   string  $table      name of table to retrieve columns from
 497  * @param   string  $column     name of specific column
 498  * @param   mixed   $link       mysql link resource
 499  */
 500 function PMA_DBI_get_columns_full($database = null, $table = null,
 501     $column = null, $link = null)
 502 {
 503     $columns = array();
 504
 505     if ( PMA_MYSQL_INT_VERSION >= 50002 ) {
 506         $sql_wheres = array();
 507         $array_keys = array();
 508
 509         // get columns information from information_schema
 510         if ( null !== $database ) {
 511             $sql_wheres[] = '`TABLE_SCHEMA` = \'' . addslashes($database) . '\' ';
 512         } else {
 513             $array_keys[] = 'TABLE_SCHEMA';
 514         }
 515         if (  null !== $table ) {
 516             $sql_wheres[] = '`TABLE_NAME` = \'' . addslashes($table) . '\' ';
 517         } else {
 518             $array_keys[] = 'TABLE_NAME';
 519         }
 520         if (  null !== $column ) {
 521             $sql_wheres[] = '`COLUMN_NAME` = \'' . addslashes($column) . '\' ';
 522         } else {
 523             $array_keys[] = 'COLUMN_NAME';
 524         }
 525
 526         // for PMA bc:
 527         // `[SCHEMA_FIELD_NAME]` AS `[SHOW_FULL_COLUMNS_FIELD_NAME]`
 528         $sql = '
 529              SELECT *,
 530                     `COLUMN_NAME`       AS `Field`,
 531                     `COLUMN_TYPE`       AS `Type`,
 532                     `COLLATION_NAME`    AS `Collation`,
 533                     `IS_NULLABLE`       AS `Null`,
 534                     `COLUMN_KEY`        AS `Key`,
 535                     `COLUMN_DEFAULT`    AS `Default`,
 536                     `EXTRA`             AS `Extra`,
 537                     `PRIVILEGES`        AS `Privileges`,
 538                     `COLUMN_COMMENT`    AS `Comment`
 539                FROM `information_schema`.`COLUMNS`';
 540         if ( count($sql_wheres) ) {
 541             $sql .= "\n" . ' WHERE ' . implode(' AND ', $sql_wheres);
 542         }
 543
 544         $columns = PMA_DBI_fetch_result($sql, $array_keys, null, $link);
 545         unset( $sql_wheres, $sql );
 546     } else {
 547         if ( null === $database ) {
 548             $databases = PMA_DBI_get_dblist();
 549             foreach ( $databases as $database ) {
 550                 $columns[$database] = PMA_DBI_get_columns_full($database, null,
 551                     null, $link);
 552             }
 553             return $columns;
 554         } elseif ( null === $table ) {
 555             $tables = PMA_DBI_get_tables($database);
 556             foreach ( $tables as $table ) {
 557                 $columns[$table] = PMA_DBI_get_columns_full(
 558                     $database, $table, null, $link);
 559             }
 560             return $columns;
 561         }
 562
 563         $sql = 'SHOW FULL COLUMNS FROM '
 564             . PMA_backquote($database) . '.' . PMA_backquote($table);
 565         if ( null !== $column ) {
 566             $sql .= " LIKE '" . $column . "'";
 567         }
 568
 569         $columns = PMA_DBI_fetch_result( $sql, 'Field', null, $link );
 570
 571         $ordinal_position = 1;
 572         foreach ( $columns as $column_name => $each_column ) {
 573
 574             // MySQL forward compatibility
 575             // so pma could use this array as if every server is of version >5.0
 576             $columns[$column_name]['COLUMN_NAME']                 =& $columns[$column_name]['Field'];
 577             $columns[$column_name]['COLUMN_TYPE']                 =& $columns[$column_name]['Type'];
 578             $columns[$column_name]['COLLATION_NAME']              =& $columns[$column_name]['Collation'];
 579             $columns[$column_name]['IS_NULLABLE']                 =& $columns[$column_name]['Null'];
 580             $columns[$column_name]['COLUMN_KEY']                  =& $columns[$column_name]['Key'];
 581             $columns[$column_name]['COLUMN_DEFAULT']              =& $columns[$column_name]['Default'];
 582             $columns[$column_name]['EXTRA']                       =& $columns[$column_name]['Extra'];
 583             $columns[$column_name]['PRIVILEGES']                  =& $columns[$column_name]['Privileges'];
 584             $columns[$column_name]['COLUMN_COMMENT']              =& $columns[$column_name]['Comment'];
 585
 586             $columns[$column_name]['TABLE_CATALOG']               = null;
 587             $columns[$column_name]['TABLE_SCHEMA']                = $database;
 588             $columns[$column_name]['TABLE_NAME']                  = $table;
 589             $columns[$column_name]['ORDINAL_POSITION']            = $ordinal_position;
 590             $columns[$column_name]['DATA_TYPE']                   =
 591                 substr($columns[$column_name]['COLUMN_TYPE'], 0,
 592                     strpos($columns[$column_name]['COLUMN_TYPE'], '('));
 593             // @TODO guess CHARACTER_MAXIMUM_LENGTH from COLUMN_TYPE
 594             $columns[$column_name]['CHARACTER_MAXIMUM_LENGTH']    = null;
 595             // @TODO guess CHARACTER_OCTET_LENGTH from CHARACTER_MAXIMUM_LENGTH
 596             $columns[$column_name]['CHARACTER_OCTET_LENGTH']      = null;
 597             $columns[$column_name]['NUMERIC_PRECISION']           = null;
 598             $columns[$column_name]['NUMERIC_SCALE']               = null;
 599             $columns[$column_name]['CHARACTER_SET_NAME']          =
 600                 substr($columns[$column_name]['COLLATION_NAME'], 0,
 601                     strpos($columns[$column_name]['COLLATION_NAME'], '_'));
 602
 603             $ordinal_position++;
 604         }
 605
 606         if ( null !== $column ) {
 607             reset($columns);
 608             $columns = current($columns);
 609         }
 610     }
 611
 612     return $columns;
 613 }
 614
 615 /**
 616  * @TODO should only return columns names, for more info use PMA_DBI_get_columns_full()
 617  *
 618  * @deprecated by PMA_DBI_get_columns() or PMA_DBI_get_columns_full()
 619  * @param   string  $database   name of database
 620  * @param   string  $table      name of table to retrieve columns from
 621  * @param   mixed   $link       mysql link resource
 622  * @return  array   column info
 623  */
 624 function PMA_DBI_get_fields($database, $table, $link = null)
 625 {
 626     // here we use a try_query because when coming from
 627     // tbl_create + tbl_properties.inc.php, the table does not exist
 628     $fields = PMA_DBI_fetch_result(
 629         'SHOW FULL COLUMNS
 630         FROM ' . PMA_backquote($database) . '.' . PMA_backquote($table),
 631         null, null, $link);
 632     if ( ! is_array($fields) || count($fields) < 1 ) {
 633         return false;
 634     }
 635     return $fields;
 636 }
 637
 638 /**
 639  * array PMA_DBI_get_columns(string $database, string $table, bool $full = false, mysql db link $link = null)
 640  *
 641  * @param   string  $database   name of database
 642  * @param   string  $table      name of table to retrieve columns from
 643  * @param   boolean $full       wether to return full info or only column names
 644  * @param   mixed   $link       mysql link resource
 645  * @return  array   column names
 646  */
 647 function PMA_DBI_get_columns($database, $table, $full = false, $link = null)
 648 {
 649     $fields = PMA_DBI_fetch_result(
 650         'SHOW ' . ($full ? 'FULL' : '') . ' COLUMNS
 651         FROM ' . PMA_backquote($database) . '.' . PMA_backquote($table),
 652         'Fields', ($full ? null : 'Fields'), $link);
 653     if ( ! is_array($fields) || count($fields) < 1 ) {
 654         return false;
 655     }
 656     return $fields;
 657 }
 658
 659 /**
 660  * returns value of given mysql server variable
 661  *
 662  * @param   string  $var    mysql server variable name
 663  * @param   int     $type   PMA_DBI_GETVAR_SESSION|PMA_DBI_GETVAR_GLOBAL
 664  * @param   mixed   $link   mysql link resource|object
 665  * @return  mixed   value for mysql server variable
 666  */
 667 function PMA_DBI_get_variable($var, $type = PMA_DBI_GETVAR_SESSION, $link = null)
 668 {
 669     if ($link === null) {
 670         if (isset($GLOBALS['userlink'])) {
 671             $link = $GLOBALS['userlink'];
 672         } else {
 673             return false;
 674         }
 675     }
 676     if (PMA_MYSQL_INT_VERSION < 40002) {
 677         $type = 0;
 678     }
 679     switch ($type) {
 680         case PMA_DBI_GETVAR_SESSION:
 681             $modifier = ' SESSION';
 682             break;
 683         case PMA_DBI_GETVAR_GLOBAL:
 684             $modifier = ' GLOBAL';
 685             break;
 686         default:
 687             $modifier = '';
 688     }
 689     return PMA_DBI_fetch_value(
 690         'SHOW' . $modifier . ' VARIABLES LIKE \'' . $var . '\';', 0, 1, $link);
 691 }
 692
 693 /**
 694  * @uses    ./libraries/charset_conversion.lib.php
 695  * @uses    PMA_DBI_QUERY_STORE
 696  * @uses    PMA_REMOVED_NON_UTF_8
 697  * @uses    PMA_MYSQL_INT_VERSION
 698  * @uses    PMA_MYSQL_STR_VERSION
 699  * @uses    PMA_DBI_GETVAR_SESSION
 700  * @uses    PMA_DBI_fetch_value()
 701  * @uses    PMA_DBI_query()
 702  * @uses    PMA_DBI_get_variable()
 703  * @uses    $GLOBALS['collation_connection']
 704  * @uses    $GLOBALS['charset_connection']
 705  * @uses    $GLOBALS['available_languages']
 706  * @uses    $GLOBALS['mysql_charset_map']
 707  * @uses    $GLOBALS['charset']
 708  * @uses    $GLOBALS['lang']
 709  * @uses    $GLOBALS['cfg']['Lang']
 710  * @uses    $GLOBALS['cfg']['ColumnTypes']
 711  * @uses    defined()
 712  * @uses    explode()
 713  * @uses    sprintf()
 714  * @uses    intval()
 715  * @uses    define()
 716  * @uses    defined()
 717  * @uses    substr()
 718  * @uses    count()
 719  * @param   mixed   $link   mysql link resource|object
 720  * @param   boolean $is_controluser
 721  */
 722 function PMA_DBI_postConnect($link, $is_controluser = false)
 723 {
 724     if (!defined('PMA_MYSQL_INT_VERSION')) {
 725         $mysql_version = PMA_DBI_fetch_value(
 726             'SELECT VERSION()', 0, 0, $link, PMA_DBI_QUERY_STORE);
 727         if ( $mysql_version ) {
 728             $match = explode('.', $mysql_version);
 729             define('PMA_MYSQL_INT_VERSION',
 730                 (int) sprintf('%d%02d%02d', $match[0], $match[1],
 731                         intval($match[2])));
 732             define('PMA_MYSQL_STR_VERSION', $mysql_version);
 733             unset($mysql_version, $match);
 734         } else {
 735             define('PMA_MYSQL_INT_VERSION', 32332);
 736             define('PMA_MYSQL_STR_VERSION', '3.23.32');
 737         }
 738     }
 739
 740     if (!defined('PMA_ENGINE_KEYWORD')) {
 741         if (PMA_MYSQL_INT_VERSION >= 40102) {
 742             define('PMA_ENGINE_KEYWORD','ENGINE');
 743         } else {
 744             define('PMA_ENGINE_KEYWORD','TYPE');
 745         }
 746     }
 747
 748     if (PMA_MYSQL_INT_VERSION >= 40100) {
 749
 750         // If $lang is defined and we are on MySQL >= 4.1.x,
 751         // we auto-switch the lang to its UTF-8 version (if it exists and user
 752         // didn't force language)
 753         if ( !empty($GLOBALS['lang'])
 754           && (substr($GLOBALS['lang'], -5) != 'utf-8')
 755           && !isset($GLOBALS['cfg']['Lang']) ) {
 756             $lang_utf_8_version =
 757                 substr($GLOBALS['lang'], 0, strpos($GLOBALS['lang'], '-'))
 758                 . '-utf-8';
 759             if (!empty($GLOBALS['available_languages'][$lang_utf_8_version])) {
 760                 $GLOBALS['lang'] = $lang_utf_8_version;
 761                 $GLOBALS['charset'] = 'utf-8';
 762             }
 763         }
 764
 765         // and we remove the non-UTF-8 choices to avoid confusion
 766         if (!defined('PMA_REMOVED_NON_UTF_8')) {
 767             foreach ( $GLOBALS['available_languages'] as $each_lang => $dummy ) {
 768                 if ( substr($each_lang, -5) != 'utf-8' ) {
 769                     unset( $GLOBALS['available_languages'][$each_lang] );
 770                 }
 771             }
 772             define('PMA_REMOVED_NON_UTF_8', 1);
 773         }
 774
 775         $mysql_charset = $GLOBALS['mysql_charset_map'][$GLOBALS['charset']];
 776         if ( $is_controluser
 777           || empty($GLOBALS['collation_connection'])
 778           || (strpos($GLOBALS['collation_connection'], '_')
 779                 ? substr($GLOBALS['collation_connection'], 0, strpos($GLOBALS['collation_connection'], '_'))
 780                 : $GLOBALS['collation_connection']) == $mysql_charset) {
 781
 782             PMA_DBI_query('SET NAMES ' . $mysql_charset . ';', $link,
 783                 PMA_DBI_QUERY_STORE);
 784         } else {
 785             PMA_DBI_query('SET CHARACTER SET ' . $mysql_charset . ';', $link,
 786                 PMA_DBI_QUERY_STORE);
 787         }
 788         if (!empty($GLOBALS['collation_connection'])) {
 789             PMA_DBI_query('SET collation_connection = \'' . $GLOBALS['collation_connection'] . '\';',
 790                 $link, PMA_DBI_QUERY_STORE);
 791         }
 792         if (!$is_controluser) {
 793             $GLOBALS['collation_connection'] = PMA_DBI_get_variable('collation_connection',
 794                 PMA_DBI_GETVAR_SESSION, $link);
 795             $GLOBALS['charset_connection']   = PMA_DBI_get_variable('character_set_connection',
 796                 PMA_DBI_GETVAR_SESSION, $link);
 797         }
 798
 799         // Add some field types to the list, this needs to be done once per session!
 800         if ($GLOBALS['cfg']['ColumnTypes'][count($GLOBALS['cfg']['ColumnTypes']) - 1] != 'VARBINARY') {
 801             $GLOBALS['cfg']['ColumnTypes'][] = 'BINARY';
 802             $GLOBALS['cfg']['ColumnTypes'][] = 'VARBINARY';
 803         }
 804
 805     } else {
 806         require_once('./libraries/charset_conversion.lib.php');
 807     }
 808 }
 809
 810 /**
 811  * returns a single value from the given result or query,
 812  * if the query or the result has more than one row or field
 813  * the first field of the first row is returned
 814  *
 815  * <code>
 816  * $sql = 'SELECT `name` FROM `user` WHERE `id` = 123';
 817  * $user_name = PMA_DBI_fetch_value( $sql );
 818  * // produces
 819  * // $user_name = 'John Doe'
 820  * </code>
 821  *
 822  * @uses    is_string()
 823  * @uses    is_int()
 824  * @uses    PMA_DBI_try_query()
 825  * @uses    PMA_DBI_num_rows()
 826  * @uses    PMA_DBI_fetch_row()
 827  * @uses    PMA_DBI_fetch_assoc()
 828  * @uses    PMA_DBI_free_result()
 829  * @param   string|mysql_result $result query or mysql result
 830  * @param   integer             $row_number row to fetch the value from,
 831  *                                      starting at 0, with 0 beeing default
 832  * @param   integer|string      $field  field to fetch the value from,
 833  *                                      starting at 0, with 0 beeing default
 834  * @param   resource            $link   mysql link
 835  * @param   mixed               $options
 836  * @return  mixed               value of first field in first row from result
 837  *                              or false if not found
 838  */
 839 function PMA_DBI_fetch_value( $result, $row_number = 0, $field = 0, $link = null, $options = 0 ) {
 840     $value = false;
 841
 842     if ( is_string( $result ) ) {
 843         $result = PMA_DBI_try_query( $result, $link, $options | PMA_DBI_QUERY_STORE );
 844     }
 845
 846     // return false if result is empty or false
 847     // or requested row is larger than rows in result
 848     if ( PMA_DBI_num_rows( $result ) < ( $row_number + 1 ) ) {
 849         return $value;
 850     }
 851
 852     // if $field is an integer use non associative mysql fetch function
 853     if ( is_int( $field ) ) {
 854         $fetch_function = 'PMA_DBI_fetch_row';
 855     } else {
 856         $fetch_function = 'PMA_DBI_fetch_assoc';
 857     }
 858
 859     // get requested row
 860     for ( $i = 0; $i <= $row_number; $i++ ) {
 861         $row = $fetch_function( $result );
 862     }
 863     PMA_DBI_free_result( $result );
 864
 865     // return requested field
 866     if ( isset( $row[$field] ) ) {
 867         $value = $row[$field];
 868     }
 869     unset( $row );
 870
 871     return $value;
 872 }
 873
 874 /**
 875  * returns only the first row from the result
 876  *
 877  * <code>
 878  * $sql = 'SELECT * FROM `user` WHERE `id` = 123';
 879  * $user = PMA_DBI_fetch_single_row( $sql );
 880  * // produces
 881  * // $user = array( 'id' => 123, 'name' => 'John Doe' )
 882  * </code>
 883  *
 884  * @uses    is_string()
 885  * @uses    PMA_DBI_try_query()
 886  * @uses    PMA_DBI_num_rows()
 887  * @uses    PMA_DBI_fetch_row()
 888  * @uses    PMA_DBI_fetch_assoc()
 889  * @uses    PMA_DBI_fetch_array()
 890  * @uses    PMA_DBI_free_result()
 891  * @param   string|mysql_result $result query or mysql result
 892  * @param   string              $type   NUM|ASSOC|BOTH
 893  *                                      returned array should either numeric
 894  *                                      associativ or booth
 895  * @param   resource            $link   mysql link
 896  * @param   mixed               $options
 897  * @return  array|boolean       first row from result
 898  *                              or false if result is empty
 899  */
 900 function PMA_DBI_fetch_single_row( $result, $type = 'ASSOC', $link = null, $options = 0 ) {
 901     if ( is_string( $result ) ) {
 902         $result = PMA_DBI_try_query( $result, $link, $options | PMA_DBI_QUERY_STORE );
 903     }
 904
 905     // return null if result is empty or false
 906     if ( ! PMA_DBI_num_rows( $result ) ) {
 907         return false;
 908     }
 909
 910     switch ( $type ) {
 911         case 'NUM' :
 912             $fetch_function = 'PMA_DBI_fetch_row';
 913             break;
 914         case 'ASSOC' :
 915             $fetch_function = 'PMA_DBI_fetch_assoc';
 916             break;
 917         case 'BOTH' :
 918         default :
 919             $fetch_function = 'PMA_DBI_fetch_array';
 920             break;
 921     }
 922
 923     $row = $fetch_function( $result );
 924     PMA_DBI_free_result( $result );
 925     return $row;
 926 }
 927
 928 /**
 929  * returns all rows in the resultset in one array
 930  *
 931  * <code>
 932  * $sql = 'SELECT * FROM `user`';
 933  * $users = PMA_DBI_fetch_result( $sql );
 934  * // produces
 935  * // $users[] = array( 'id' => 123, 'name' => 'John Doe' )
 936  *
 937  * $sql = 'SELECT `id`, `name` FROM `user`';
 938  * $users = PMA_DBI_fetch_result( $sql, 'id' );
 939  * // produces
 940  * // $users['123'] = array( 'id' => 123, 'name' => 'John Doe' )
 941  *
 942  * $sql = 'SELECT `id`, `name` FROM `user`';
 943  * $users = PMA_DBI_fetch_result( $sql, 0 );
 944  * // produces
 945  * // $users['123'] = array( 0 => 123, 1 => 'John Doe' )
 946  *
 947  * $sql = 'SELECT `id`, `name` FROM `user`';
 948  * $users = PMA_DBI_fetch_result( $sql, 'id', 'name' );
 949  * // or
 950  * $users = PMA_DBI_fetch_result( $sql, 0, 1 );
 951  * // produces
 952  * // $users['123'] = 'John Doe'
 953  *
 954  * $sql = 'SELECT `name` FROM `user`';
 955  * $users = PMA_DBI_fetch_result( $sql );
 956  * // produces
 957  * // $users[] = 'John Doe'
 958  * </code>
 959  *
 960  * @uses    is_string()
 961  * @uses    is_int()
 962  * @uses    PMA_DBI_try_query()
 963  * @uses    PMA_DBI_num_rows()
 964  * @uses    PMA_DBI_num_fields()
 965  * @uses    PMA_DBI_fetch_row()
 966  * @uses    PMA_DBI_fetch_assoc()
 967  * @uses    PMA_DBI_free_result()
 968  * @param   string|mysql_result $result query or mysql result
 969  * @param   string|integer      $key    field-name or offset
 970  *                                      used as key for array
 971  * @param   string|integer      $value  value-name or offset
 972  *                                      used as value for array
 973  * @param   resource            $link   mysql link
 974  * @param   mixed               $options
 975  * @return  array               resultrows or values indexed by $key
 976  */
 977 function PMA_DBI_fetch_result( $result, $key = null, $value = null,
 978     $link = null, $options = 0 )
 979 {
 980     $resultrows = array();
 981
 982     if ( is_string($result) ) {
 983         $result = PMA_DBI_try_query($result, $link, $options);
 984     }
 985
 986     // return empty array if result is empty or false
 987     if ( ! $result ) {
 988         return $resultrows;
 989     }
 990
 991     $fetch_function = 'PMA_DBI_fetch_assoc';
 992
 993     // no nested array if only one field is in result
 994     if ( null === $key && 1 === PMA_DBI_num_fields($result) ) {
 995         $value = 0;
 996         $fetch_function = 'PMA_DBI_fetch_row';
 997     }
 998
 999     // if $key is an integer use non associative mysql fetch function
1000     if ( is_int($key) ) {
1001         $fetch_function = 'PMA_DBI_fetch_row';
1002     }
1003
1004     if ( null === $key && null === $value ) {
1005         while ( $row = $fetch_function($result) ) {
1006             $resultrows[] = $row;
1007         }
1008     } elseif ( null === $key ) {
1009         while ( $row = $fetch_function($result) ) {
1010             $resultrows[] = $row[$value];
1011         }
1012     } elseif ( null === $value ) {
1013         if ( is_array($key) ) {
1014             while ( $row = $fetch_function($result) ) {
1015                 $result_target =& $resultrows;
1016                 foreach ( $key as $key_index ) {
1017                     if ( ! isset( $result_target[$row[$key_index]] ) ) {
1018                         $result_target[$row[$key_index]] = array();
1019                     }
1020                     $result_target =& $result_target[$row[$key_index]];
1021                 }
1022                 $result_target = $row;
1023             }
1024         } else {
1025             while ( $row = $fetch_function($result) ) {
1026                 $resultrows[$row[$key]] = $row;
1027             }
1028         }
1029     } else {
1030         if ( is_array($key) ) {
1031             while ( $row = $fetch_function($result) ) {
1032                 $result_target =& $resultrows;
1033                 foreach ( $key as $key_index ) {
1034                     if ( ! isset( $result_target[$row[$key_index]] ) ) {
1035                         $result_target[$row[$key_index]] = array();
1036                     }
1037                     $result_target =& $result_target[$row[$key_index]];
1038                 }
1039                 $result_target = $row[$value];
1040             }
1041         } else {
1042             while ( $row = $fetch_function($result) ) {
1043                 $resultrows[$row[$key]] = $row[$value];
1044             }
1045         }
1046     }
1047
1048     PMA_DBI_free_result($result);
1049     return $resultrows;
1050 }
1051
1052 /**
1053  * return default table engine for given database
1054  *
1055  * @return  string  default table engine
1056  */
1057 function PMA_DBI_get_default_engine()
1058 {
1059     if ( PMA_MYSQL_INT_VERSION > 50002 ) {
1060         return PMA_DBI_fetch_value( 'SHOW VARIABLES LIKE \'storage_engine\';', 0, 1 );
1061     } else {
1062         return PMA_DBI_fetch_value( 'SHOW VARIABLES LIKE \'table_type\';', 0, 1 );
1063     }
1064 }
1065
1066 /**
1067  * Get supported SQL compatibility modes
1068  *
1069  * @return  array   supported SQL compatibility modes
1070  */
1071 function PMA_DBI_getCompatibilities()
1072 {
1073     if (PMA_MYSQL_INT_VERSION < 40100) {
1074         return array();
1075     }
1076     $compats = array('NONE');
1077     if (PMA_MYSQL_INT_VERSION >= 40101) {
1078         $compats[] = 'ANSI';
1079         $compats[] = 'DB2';
1080         $compats[] = 'MAXDB';
1081         $compats[] = 'MYSQL323';
1082         $compats[] = 'MYSQL40';
1083         $compats[] = 'MSSQL';
1084         $compats[] = 'ORACLE';
1085         $compats[] = 'POSTGRESQL';
1086         if (PMA_MYSQL_INT_VERSION >= 50002) {
1087             $compats[] = 'TRADITIONAL';
1088         }
1089     }
1090     return $compats;
1091 }
1092
1093 ?>