note 68544 added to reference.pcre.pattern.syntax

The following expression will find all correctly escaped parentheses. Here with '{' and '}'. You will simply have to change all occurences to change the behavior for other parentheses. <? $string = 'this is a{test with \\{ and \\}}.'; $reg = '/(?:(?<!\\\\\\){((?:(?:(?<=\\\\\\)[{}]|[^{}])' . '|(?R))+)(?<!\\\\\\)})/ms' preg_match($reg, $string, $return); ?> I hope this will help someone. If there are any mistakes, plz write me Thx Nox ---- Server IP: 217.160.72.57 Probable Submitter: 62.206.21.246 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/reference.pcre.pattern.syntax.php Edit -- https://master.php.net/note/edit/68544 Del: integrated -- https://master.php.net/note/delete/68544/integrated Del: useless -- https://master.php.net/note/delete/68544/useless Del: bad code -- https://master.php.net/note/delete/68544/bad+code Del: spam -- https://master.php.net/note/delete/68544/spam Del: non-english -- https://master.php.net/note/delete/68544/non-english Del: in docs -- https://master.php.net/note/delete/68544/in+docs Del: other reasons-- https://master.php.net/note/delete/68544 Reject -- https://master.php.net/note/reject/68544 Search -- https://master.php.net/manage/user-notes.php