includes/functions.php

   1 <?php
   2 $errors = array();
   3 $erred = false;
   4
   5 /* ==============================================
   6                                   USER FUNCTIONS
   7   ===============================================*/
   8
   9 function create_id()
  10 {
  11         global $link;
  12
  13         $user_id = uniqid('', true);
  14         $password = generate_password();
  15
  16         $stmt = $link->prepare('INSERT INTO users (uid, password, ip_address, first_seen) VALUES (?, ?, ?, UNIX_TIMESTAMP())');
  17         $stmt->bind_param('sss', $user_id, $password, $_SERVER['REMOTE_ADDR']);
  18         $stmt->execute();
  19
  20         $_SESSION['first_seen'] = $_SERVER['REQUEST_TIME'];
  21         $_SESSION['notice'] = 'Welcome to <strong>' . SITE_TITLE . '</strong>. An account has automatically been created and assigned to you. You don\'t have to register or log in to use the board. Please don\'t clear your cookies unless you have <a href="/dashboard">set a memorable name and password</a>.';
  22
  23         setcookie('UID', $user_id, $_SERVER['REQUEST_TIME'] + 315569260, '/');
  24         setcookie('password', $password, $_SERVER['REQUEST_TIME'] + 315569260, '/');
  25         $_SESSION['UID'] = $user_id;
  26 }
  27
  28 function generate_password()
  29 {
  30         $characters = str_split('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789');
  31         $password = '';
  32
  33         for($i = 0; $i < 32; ++$i)
  34         {
  35                 $password .= $characters[array_rand($characters)];
  36         }
  37         return $password;
  38 }
  39
  40 function activate_id()
  41 {
  42         global $link;
  43
  44         $stmt = $link->prepare('SELECT password, first_seen FROM users WHERE uid = ?');
  45         $stmt->bind_param('s', $_COOKIE['UID']);
  46         $stmt->execute();
  47         $stmt->bind_result($db_password, $first_seen);
  48         $stmt->fetch();
  49         $stmt->close();
  50
  51         if( ! empty($db_password) && $_COOKIE['password'] === $db_password)
  52         {
  53                 // The password is correct!
  54                 $_SESSION['UID'] = $_COOKIE['UID'];
  55                 // Our ID wasn't just created.
  56                 $_SESSION['ID_activated'] = true;
  57                 // For post.php
  58                 $_SESSION['first_seen'] = $first_seen;
  59
  60                 return true;
  61         }
  62
  63         // If the password was wrong, create a new ID.
  64         create_id();
  65 }
  66
  67 function force_id()
  68 {
  69         if( ! isset($_SESSION['ID_activated']))
  70         {
  71                 add_error('The page that you tried to access requires that you have a valid internal ID. This is supposed to be automatically created the first time you load a page here. Maybe you were linked directly to this page? Upon loading this page, assuming that you have cookies supported and enabled in your Web browser, you have been assigned a new ID. If you keep seeing this page, something is wrong with your setup; stop refusing/modifying/deleting cookies!', true);
  72         }
  73 }
  74
  75 function update_activity($action_name, $action_id = '')
  76 {
  77         global $link;
  78
  79         if( ! isset($_SESSION['UID']))
  80         {
  81                 return false;
  82         }
  83
  84         $update_activity = $link->prepare('INSERT INTO activity (time, uid, action_name, action_id) VALUES (UNIX_TIMESTAMP(), ?, ?, ?) ON DUPLICATE KEY UPDATE time = UNIX_TIMESTAMP(), action_name = ?, action_id = ?;');
  85         $update_activity->bind_param('ssisi', $_SESSION['UID'], $action_name, $action_id, $action_name, $action_id);
  86         $update_activity->execute();
  87         $update_activity->close();
  88 }
  89
  90 function id_exists($id)
  91 {
  92         global $link;
  93
  94         $uid_exists = $link->prepare('SELECT 1 FROM users WHERE uid = ?');
  95         $uid_exists->bind_param('s', $_GET['id']);
  96         $uid_exists->execute();
  97         $uid_exists->store_result();
  98
  99         if($uid_exists->num_rows < 1)
 100         {
 101                 $uid_exists->close();
 102                 return false;
 103         }
 104
 105         $uid_exists->close();
 106         return true;
 107 }
 108
 109 function remove_id_ban($id)
 110 {
 111         global $link;
 112
 113         $remove_ban = $link->prepare('DELETE FROM uid_bans WHERE uid = ?');
 114         $remove_ban->bind_param('s', $id);
 115         $remove_ban->execute();
 116         $remove_ban->close();
 117 }
 118
 119 function remove_ip_ban($ip)
 120 {
 121         global $link;
 122
 123         $remove_ban = $link->prepare('DELETE FROM ip_bans WHERE ip_address = ?');
 124         $remove_ban->bind_param('s', $ip);
 125         $remove_ban->execute();
 126         $remove_ban->close();
 127 }
 128
 129 function fetch_ignore_list() // For ostrich mode.
 130 {
 131         global $link;
 132
 133         if($_COOKIE['ostrich_mode'] == 1)
 134         {
 135                 $fetch_ignore_list = $link->prepare('SELECT ignored_phrases FROM ignore_lists WHERE uid = ?');
 136                 $fetch_ignore_list->bind_param('s', $_COOKIE['UID']);
 137                 $fetch_ignore_list->execute();
 138                 $fetch_ignore_list->bind_result($ignored_phrases);
 139                 $fetch_ignore_list->fetch();
 140                 $fetch_ignore_list->close();
 141
 142                 // To make this work with Windows input, we need to strip out the return carriage.
 143                 $ignored_phrases = explode("\n", str_replace("\r", '', $ignored_phrases));
 144
 145                 return $ignored_phrases;
 146         }
 147 }
 148
 149 function show_trash($uid, $silence = false) // For profile and trash can.
 150 {
 151         global $link;
 152
 153         $output = '<table><thead><tr> <th class="minimal">Headline</th> <th>Body</th> <th class="minimal">Time since deletion ▼</th> </tr></thead> <tbody>';
 154
 155         $fetch_trash = $link->prepare('SELECT headline, body, time FROM trash WHERE uid = ? ORDER BY time DESC');
 156         $fetch_trash->bind_param('s', $uid);
 157         $fetch_trash->execute();
 158         $fetch_trash->bind_result($trash_headline, $trash_body, $trash_time);
 159
 160         $table = new table();
 161         $columns = array
 162         (
 163                 'Headline',
 164                 'Body',
 165                 'Time since deletion ▼'
 166         );
 167         $table->define_columns($columns, 'Body');
 168
 169         while($fetch_trash->fetch())
 170         {
 171                 if(empty($trash_headline))
 172                 {
 173                         $trash_headline = '<span class="unimportant">(Reply.)</span>';
 174                 }
 175                 else
 176                 {
 177                         $trash_headline = htmlspecialchars($trash_headline);
 178                 }
 179
 180                 $values = array
 181                 (
 182                         $trash_headline,
 183                         nl2br(htmlspecialchars($trash_body)),
 184                         '<span class="help" title="' . format_date($trash_time) . '">' . calculate_age($trash_time) . '</span>'
 185                 );
 186
 187                 $table->row($values);
 188         }
 189         $fetch_trash->close();
 190
 191         if($table->num_rows_fetched === 0)
 192         {
 193                 return false;
 194         }
 195         return $table->output();
 196 }
 197
 198 /* ==============================================
 199                                          OUTPUT
 200   ===============================================*/
 201
 202 // Prettify dynamic mark-up
 203 function indent($num_tabs = 1)
 204 {
 205         return "\n" . str_repeat("\t", $num_tabs);
 206 }
 207
 208 // Print a <table>. 100 rows takes ~0.0035 seconds on my computer.
 209 class table
 210 {
 211         public $num_rows_fetched = 0;
 212
 213         private $output = '';
 214
 215         private $primary_key;
 216         private $columns = array();
 217         private $td_classes = array();
 218
 219         private $marker_printed = false;
 220         private $last_seen = false;
 221         private $order_time = false;
 222
 223         public function define_columns($all_columns, $primary_column)
 224         {
 225                 $this->columns = $all_columns;
 226
 227                 $this->output .= '<table>' . indent() . '<thead>' . indent(2) . '<tr>';
 228
 229                 foreach($all_columns as $key => $column)
 230                 {
 231                         $this->output .=   indent(3) . ' <th';
 232                         if($column != $primary_column)
 233                         {
 234                                 $this->output .= ' class="minimal"';
 235                         }
 236                         else
 237                         {
 238                                 $this->primary_key = $key;
 239                         }
 240                         $this->output .=  '>' . $column . '</th>';
 241                 }
 242
 243                 $this->output .=  indent(2) . '</tr>' . indent() . '</thead>' . indent() . '<tbody>';
 244         }
 245
 246         public function add_td_class($column_name, $class)
 247         {
 248                 $this->td_classes[$column_name] = $class;
 249         }
 250
 251         public function last_seen_marker($last_seen, $order_time)
 252         {
 253                 $this->last_seen = $last_seen;
 254                 $this->order_time = $order_time;
 255         }
 256
 257         public function row($values)
 258         {
 259                 // Print <tr>
 260                 $this->output .=  indent(2) . '<tr';
 261                 if($this->num_rows_fetched & 1)
 262                 {
 263                         $this->output .=  ' class="odd"';
 264                 }
 265                 // Print the last seen marker.
 266                 if($this->last_seen && ! $this->marker_printed && $this->order_time <= $this->last_seen)
 267                 {
 268                         $this->marker_printed = true;
 269                         if($this->num_rows_fetched != 0)
 270                         {
 271                                 $this->output .=  ' id="last_seen_marker"';
 272                         }
 273                 }
 274                 $this->output .=  '>';
 275
 276                 // Print each <td>
 277                 foreach($values as $key => $value)
 278                 {
 279                         $classes = array();
 280
 281                         $this->output .=  indent(3) . '<td';
 282
 283                         // If this isn't the primary column (as set in define_columns()), its length should be minimal.
 284                         if($key !== $this->primary_key)
 285                         {
 286                                 $classes[] = 'minimal';
 287                         }
 288                         // Check if a class has been added via add_td_class.
 289                         if( isset( $this->td_classes[ $this->columns[$key] ] ) )
 290                         {
 291                                 $classes[] = $this->td_classes[$this->columns[$key]];
 292                         }
 293                         // Print any classes added by the above two conditionals.
 294                         if( ! empty($classes))
 295                         {
 296                                 $this->output .=  ' class="' . implode(' ', $classes) . '"';
 297                         }
 298
 299                         $this->output .=  '>' . $value . '</td>';
 300                 }
 301
 302                 $this->output .=  indent(2) . '</tr>';
 303
 304                 $this->num_rows_fetched++;
 305         }
 306
 307         public function output($items = 'items', $silence = false)
 308         {
 309                 $this->output .=  indent() . '</tbody>' . "\n" . '</table>' . "\n";
 310
 311                 if($this->num_rows_fetched > 0)
 312                 {
 313                         return $this->output;
 314                 }
 315                 else if( ! $silence)
 316                 {
 317                         return '<p>(No ' . $items . ' to show.)</p>';
 318                 }
 319
 320                 // Silence.
 321                 return '';
 322         }
 323 }
 324
 325
 326 function add_error($message, $critical = false)
 327 {
 328         global $errors, $erred;
 329
 330         $errors[] = $message;
 331         $erred = true;
 332
 333         if($critical)
 334         {
 335                 print_errors(true);
 336         }
 337 }
 338
 339 function print_errors($critical = false)
 340 {
 341         global $errors;
 342
 343         $number_errors = count($errors);
 344
 345         if($number_errors > 0)
 346         {
 347                 echo '<h3 id="error">';
 348                         if($number_errors > 1)
 349                         {
 350                                 echo $number_errors . ' errors';
 351                         }
 352                         else
 353                         {
 354                                 echo 'Error';
 355                         }
 356                 echo '</h3><ul class="body standalone">';
 357
 358                 foreach($errors as $error_message)
 359                 {
 360                         echo '<li>' . $error_message . '</li>';
 361                 }
 362
 363                 echo '</ul>';
 364
 365                 if($critical)
 366                 {
 367                         if( ! isset($page_title))
 368                         {
 369                                 $page_title = 'Fatal error';
 370                         }
 371                         require('footer.php');
 372                         exit;
 373                 }
 374         }
 375 }
 376
 377 function page_navigation($section_name, $current_page, $num_items_fetched)
 378 {
 379         $output = '';
 380         if($current_page != 1)
 381         {
 382                 $output .= indent() . '<li><a href="/' . $section_name . '">Latest</a></li>';
 383         }
 384         if($current_page != 1 && $current_page != 2)
 385         {
 386                 $newer = $current_page - 1;
 387                 $output .= indent() . '<li><a href="/' . $section_name . '/' . $newer . '">Newer</a></li>';
 388         }
 389         if($num_items_fetched == ITEMS_PER_PAGE)
 390         {
 391                 $older = $current_page + 1;
 392                 $output .= indent() . '<li><a href="/' . $section_name . '/' . $older . '">Older</a></li>';
 393         }
 394
 395         if( ! empty($output))
 396         {
 397                 echo "\n" . '<ul class="menu">' . $output . "\n" . '</ul>' . "\n";
 398         }
 399 }
 400
 401 function edited_message($original_time, $edit_time, $edit_mod)
 402 {
 403         if($edit_time)
 404         {
 405                 echo '<p class="unimportant">(Edited ' . calculate_age($original_time, $edit_time) . ' later';
 406                 if($edit_mod)
 407                 {
 408                         echo ' by a moderator';
 409                 }
 410                 echo '.)</p>';
 411         }
 412 }
 413
 414 function dummy_form()
 415 {
 416         echo "\n" . '<form id="dummy_form" class="noscreen" action="" method="post">' . indent() . '<div> <input type="hidden" name="some_var" value="" /> </div>' . "\n" . '</form>' . "\n";
 417 }
 418
 419 // To redirect to index, use redirect($notice, ''). To redirect back to referrer,
 420 // use redirect($notice). To redirect to /topic/1,  use redirect($notice, 'topic/1')
 421 function redirect($notice = '', $location = NULL)
 422 {
 423         if( ! empty($notice))
 424         {
 425                 $_SESSION['notice'] = $notice;
 426         }
 427
 428         if( ! is_null($location) || empty($_SERVER['HTTP_REFERER']))
 429         {
 430                 $location = DOMAIN . $location;
 431         }
 432         else
 433         {
 434                 $location = $_SERVER['HTTP_REFERER'];
 435         }
 436
 437         header('Location: ' . $location);
 438         exit;
 439 }
 440
 441 // Unused
 442 function regenerate_config()
 443 {
 444         global $link;
 445
 446         $output = '<?php' . "\n\n" . '#### DO NOT EDIT THIS FILE. ####' . "\n\n";
 447
 448         $result = $link->query('SELECT `option`, `value` FROM configuration');
 449         while( $row = $result->fetch_assoc() )
 450         {
 451                 if( ! ctype_digit($row['value']))
 452                 {
 453                         $row['value'] = "'" . $row['value'] . "'";
 454                 }
 455                 $output .= "define('" . strtoupper($row['option']) . "', " . $row['value'] . ");\n";
 456         }
 457         $result->close();
 458
 459         $output .= "\n" . '?>';
 460
 461         file_put_contents('cache/config.php', $output, LOCK_EX);
 462 }
 463
 464 /* ==============================================
 465                                   CHECKING
 466   ===============================================*/
 467
 468 function check_length($text, $name, $min_length, $max_length)
 469 {
 470         $text_length = strlen($text);
 471
 472         if($min_length > 0 && empty($text))
 473         {
 474                 add_error('The ' . $name . ' cannot be blank.');
 475         }
 476         else if($text_length > $max_length)
 477         {
 478                 add_error('The ' . $name . ' was ' . number_format($text_length - $max_length) . ' characters over the limit (' . number_format($max_length) . ').');
 479         }
 480         else if($text_length < $min_length)
 481         {
 482                 add_error('The ' . $name . ' was too short.');
 483         }
 484 }
 485
 486 function check_tor($ip_address) //query TorDNSEL
 487 {
 488         // Reverse the octets of our IP address.
 489         $ip_address = implode('.', array_reverse( explode('.', $ip_address) ));
 490
 491          // Returns true if Tor, false if not. 80.208.77.188.166 is of no significance.
 492         return checkdnsrr($ip_address . '.80.208.77.188.166.ip-port.exitlist.torproject.org', 'A');
 493 }
 494
 495 // Prevent cross-site redirection forgeries.
 496 function csrf_token()
 497 {
 498         if( ! isset($_SESSION['token']))
 499         {
 500                 $_SESSION['token'] = md5(SALT . mt_rand());
 501         }
 502         echo '<div class="noscreen"> <input type="hidden" name="CSRF_token" value="' . $_SESSION['token'] . '" /> </div>' . "\n";
 503 }
 504
 505 function check_token()
 506 {
 507         if($_POST['CSRF_token'] !== $_SESSION['token'])
 508         {
 509                 add_error('Session error. Try again.');
 510                 return false;
 511         }
 512         return true;
 513 }
 514
 515 /* ==============================================
 516                                   FORMATTING
 517   ===============================================*/
 518
 519 function parse($text)
 520 {
 521         $text = htmlspecialchars($text);
 522         $text = str_replace("\r", '', $text);
 523
 524         $markup = array
 525         (
 526                 // Strong emphasis.
 527                 "/'''(.+?)'''/",
 528                 // Emphasis.
 529                 "/''(.+?)''/",
 530                 // Linkify URLs.
 531                 '@\b(?<!\[)(https?|ftp)://(www\.)?([A-Z0-9.-]+)(/)?([A-Z0-9/&#+%~=_|?.,!:;-]*[A-Z0-9/&#+%=~_|])?@i',
 532                 // Linkify text in the form of [http://example.org text]
 533                 '@\[(https?|ftp)://([A-Z0-9/&#+%~=_|?.,!:;-]+) (.+?)\]@i',
 534                 // Quotes.
 535                 '/^&gt;(.+)/m',
 536                 // Headers.
 537                 '/^==(.+?)==\s+/m'
 538         );
 539
 540         $html   = array
 541         (
 542                 '<strong>$1</strong>',
 543                 '<em>$1</em>',
 544                 '<a href="$0">$1://$2<strong>$3</strong>$4$5</a>',
 545                 '<a href="$1://$2">$3</a>',
 546                 '<span class="quote"><strong>&gt;</strong> $1</span>',
 547                 '<h4 class="user">$1</h4>'
 548         );
 549
 550         $text = preg_replace($markup, $html, $text);
 551         return nl2br($text);
 552 }
 553
 554 function snippet($text, $snippet_length = 80)
 555 {
 556         $patterns     = array
 557         (
 558                 "/'''?(.*?)'''?/", // strip formatting
 559                 '/^(@|>)(.*)/m' //replace quotes and citations
 560         );
 561
 562         $replacements = array
 563         (
 564                 '$1',
 565                 ' ~ '
 566         );
 567
 568         $text = preg_replace($patterns, $replacements, $text);
 569         $text = str_replace( array("\r", "\n"), ' ', $text ); // strip line breaks
 570         $text = htmlspecialchars($text);
 571
 572         if(ctype_digit($_COOKIE['snippet_length']))
 573         {
 574                 $snippet_length = $_COOKIE['snippet_length'];
 575         }
 576         if(strlen($text) > $snippet_length)
 577         {
 578                 $text = substr($text, 0, $snippet_length) . '&hellip;';
 579         }
 580         return $text;
 581 }
 582
 583 function super_trim($text)
 584 {
 585         // Strip return carriage and non-printing characters.
 586         $nonprinting_characters = array
 587         (
 588                 "\r",
 589                 '', //soft hyphen ( U+00AD)
 590                 '', // zero width no-break space ( U+FEFF)
 591                 '', // zero width space (U+200B)
 592                 '‍', // zero width joiner (U+200D)
 593                 '‌' // zero width non-joiner (U+200C)
 594         );
 595         $text = str_replace($nonprinting_characters, '', $text);
 596          //Trim and kill excessive newlines (maximum of 3)
 597         return preg_replace( '/(\r?\n[ \t]*){3,}/', "\n\n\n", trim($text) );
 598 }
 599
 600 function sanitize_for_textarea($text)
 601 {
 602         $text = str_ireplace('/textarea', '&#47;textarea', $text);
 603         $text = str_replace('<!--', '&lt;!--', $text);
 604         return $text;
 605 }
 606
 607 function calculate_age($timestamp, $comparison = '')
 608 {
 609         $units = array(
 610                                         'second' => 60,
 611                                         'minute' => 60,
 612                                         'hour' => 24,
 613                                         'day' => 7,
 614                                         'week' => 4.25, // FUCK YOU GREGORIAN CALENDAR
 615                                         'month' => 12
 616                                         );
 617
 618         if(empty($comparison))
 619         {
 620                 $comparison = $_SERVER['REQUEST_TIME'];
 621         }
 622         $age_current_unit = abs($comparison - $timestamp);
 623         foreach($units as $unit => $max_current_unit)
 624         {
 625                 $age_next_unit = $age_current_unit / $max_current_unit;
 626                 if($age_next_unit < 1) // are there enough of the current unit to make one of the next unit?
 627                 {
 628                         $age_current_unit = floor($age_current_unit);
 629                         $formatted_age = $age_current_unit . ' ' . $unit;
 630                         return $formatted_age . ($age_current_unit == 1 ? '' : 's');
 631                 }
 632                 $age_current_unit = $age_next_unit;
 633         }
 634
 635         $age_current_unit = round($age_current_unit, 1);
 636         $formatted_age = $age_current_unit . ' year';
 637         return $formatted_age . (floor($age_current_unit) == 1 ? '' : 's');
 638
 639 }
 640
 641 function format_date($timestamp)
 642 {
 643         return date('Y-m-d H:i:s \U\T\C — l \t\h\e jS \o\f F Y, g:i A', $timestamp);
 644 }
 645
 646 function format_number($number)
 647 {
 648         if($number == 0)
 649         {
 650                 return '-';
 651         }
 652         return number_format($number);
 653 }
 654
 655 function number_to_letter($number)
 656 {
 657         $alphabet = range('A', 'Y');
 658         if($number < 24)
 659         {
 660                 return $alphabet[$number];
 661         }
 662         $number = $number - 23;
 663         return 'Z-' . $number;
 664 }
 665
 666 function replies($topic_id, $topic_replies)
 667 {
 668         global $visited_topics;
 669
 670         $output = '';
 671         if( ! isset($visited_topics[$topic_id]))
 672         {
 673                 $output = '<strong>';
 674         }
 675         $output .= format_number($topic_replies);
 676
 677         if( ! isset($visited_topics[$topic_id]))
 678         {
 679                 $output .= '</strong>';
 680         }
 681         else if($visited_topics[$topic_id] < $topic_replies)
 682         {
 683                 $output .= ' (<a href="/topic/' . $topic_id . '#new">';
 684                 $new_replies = $topic_replies - $visited_topics[$topic_id];
 685                 if($new_replies != $topic_replies)
 686                 {
 687                         $output .= '<strong>' . $new_replies . '</strong> ';
 688                 }
 689                 else
 690                 {
 691                         $output .= 'all-';
 692                 }
 693                 $output .= 'new</a>)';
 694         }
 695
 696         return $output;
 697 }
 698
 699 function thumbnail($source, $dest_name, $type)
 700 {
 701         switch($type)
 702         {
 703                 case 'jpg':
 704                         $image = imagecreatefromjpeg($source);
 705                 break;
 706
 707                 case 'gif':
 708                         $image = imagecreatefromgif($source);
 709                 break;
 710
 711                 case 'png':
 712                         $image = imagecreatefrompng($source);
 713         }
 714
 715         $width = imagesx($image);
 716         $height = imagesy($image);
 717
 718         if($width > MAX_IMAGE_DIMENSIONS || $height > MAX_IMAGE_DIMENSIONS)
 719         {
 720                 $percent = MAX_IMAGE_DIMENSIONS / ( ($width > $height) ? $width : $height );
 721
 722                 $new_width = $width * $percent;
 723                 $new_height = $height * $percent;
 724
 725                 $thumbnail = imagecreatetruecolor($new_width, $new_height) ;
 726                 imagecopyresampled($thumbnail, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
 727         }
 728         else
 729         {
 730                 $thumbnail = $image;
 731         }
 732
 733         switch($type)
 734         {
 735                 case 'jpg':
 736                         imagejpeg($thumbnail, 'thumbs/' . $dest_name, 70);
 737                 break;
 738
 739                 case 'gif':
 740                         imagegif($thumbnail, 'thumbs/' . $dest_name);
 741                 break;
 742
 743                 case 'png':
 744                         imagepng($thumbnail, 'thumbs/' . $dest_name);
 745         }
 746
 747         imagedestroy($thumbnail);
 748         imagedestroy($image);
 749 }
 750
 751 ?>