note 54461 added to function.preg-replace

\ (back slash) pattern & replacement bug. // \a\b\c to -\a-\b-\c $subject = '\\a\\b\\c'; $pattern = '/\\\[a-z]/'; // why \\\ ? $replacement = '-\0'; echo preg_replace($pattern, $replacement, $subject); // abc to \a\b\c $subject = 'abc'; $pattern = '/[a-z]/'; $replacement = '\\\\\0'; // why \\\\ ? echo preg_replace($pattern, $replacement, $subject); I use pattern \x5c and replacement callback function... ---- Manual Page -- http://www.php.net/manual/en/function.preg-replace.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+54461 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+54461&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+54461&report=yes Search -- http://master.php.net/manage/user-notes.php