note 87364 added to function.preg-match

@Ronen, et al It's good practice to avoid creating back-references if you're not going to use them. Do so by replacing '(' with '(?:'. Also, the final {1} is redundant since any match is matched exactly once by default (had to split lines due to line length limitation by php.net) - /^ (?:(?:1?\d{1,2}|2[0-4]\d|25[0-5])\.){3} (?:1?\d{1,2}|2[0-4]\d|25[0-5]) $/ Nice regex though....are we having fun yet? ---- Server IP: 209.41.74.194 Probable Submitter: 66.220.104.38 ---- Manual Page -- http://www.php.net/manual/en/function.preg-match.php Edit -- https://master.php.net/note/edit/87364 Del: integrated -- https://master.php.net/note/delete/87364/integrated Del: useless -- https://master.php.net/note/delete/87364/useless Del: bad code -- https://master.php.net/note/delete/87364/bad+code Del: spam -- https://master.php.net/note/delete/87364/spam Del: non-english -- https://master.php.net/note/delete/87364/non-english Del: in docs -- https://master.php.net/note/delete/87364/in+docs Del: other reasons-- https://master.php.net/note/delete/87364 Reject -- https://master.php.net/note/reject/87364 Search -- https://master.php.net/manage/user-notes.php