note 87570 added to function.preg-match

If you need to check whether string is a serialized representation of variable(sic!) you can use this : <?php $string = "a:0:{}"; if(preg_match("/(a|O|s|b)\x3a[0-9]*? ((\x3a((\x7b?(.+)\x7d)|(\x22(.+)\x22\x3b)))|(\x3b))/", $string)) { echo "Serialized."; } else { echo "Not serialized."; } ?> But don't forget, string in serialized representation could be VERY big, so match work can be slow, even with fast preg_* functions. ---- Server IP: 195.54.192.44 Probable Submitter: 127.0.0.1 ---- Manual Page -- http://www.php.net/manual/en/function.preg-match.php Edit -- https://master.php.net/note/edit/87570 Del: integrated -- https://master.php.net/note/delete/87570/integrated Del: useless -- https://master.php.net/note/delete/87570/useless Del: bad code -- https://master.php.net/note/delete/87570/bad+code Del: spam -- https://master.php.net/note/delete/87570/spam Del: non-english -- https://master.php.net/note/delete/87570/non-english Del: in docs -- https://master.php.net/note/delete/87570/in+docs Del: other reasons-- https://master.php.net/note/delete/87570 Reject -- https://master.php.net/note/reject/87570 Search -- https://master.php.net/manage/user-notes.php