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BOOK: Beginning PHP5, Apache, and MySQL Web Development ISBN: 978-0-7645-7966-0
This is the forum to discuss the Wrox book Beginning PHP5, Apache, and MySQL Web Development by Elizabeth Naramore, Jason Gerner, Yann Le Scouarnec, Jeremy Stolz, Michael K. Glass; ISBN: 9780764579660
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Old March 20th, 2007, 05:48 PM
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Default Unknown Modifier Error - Regular Expression

Can someone help me for this error message :

Warning: preg_replace() [function.preg-replace]: Unknown modifier 'b' in C:\wamp\www\outputfunctions.php on line 37
Here's the function :

function bbcode($data) {
  $sql = "SELECT * FROM bbcode";
  $result = mysql_query($sql);
  if (mysql_num_rows($result) > 0) {
    while($row = mysql_fetch_array($result)) {
      $bbcode['tpl'][] =
        "/" . html_entity_decode($row['template'],ENT_QUOTES). "/i";
      $bbcode['rep'][] =
    $data1 = preg_replace($bbcode['tpl'],$bbcode['rep'],$data);
    $count = 1;
    while (($data1 != $data) and ($count < 4)) {
      $data = $data1;
      $data1 = preg_replace($bbcode['tpl'],$bbcode['rep'],$data);

  return $data;
Here's the table
  id int(11) NOT NULL auto_increment,
  template varchar(255) NOT NULL default '',
  replacement varchar(255) NOT NULL default '',

-- Dumping data for table `bbcode`

INSERT INTO `bbcode` VALUES (1,'\[b\]([^[]+?)\[/b\]','<b>$1</b>');
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