note 104965 added to function.preg-replace

if your intention to code and decode mod_rewrite urls and handle it with php and mysql ,this should work to convert to url $url = preg_replace('/[^A-Za-z0-9_-]+/', '-', $string); And to check in mysql with the url value,use the same expression discounting '-'. first replace the url value with php using preg_replace and use with mysql REGEXP $sql = "select * from table where fieldname_to_check REGEXP '".preg_replace("/-+/",'[^A-Za-z0-9_]+',$url)."'" ---- Server IP: 69.147.83.197 Probable Submitter: 122.172.114.126 ---- Manual Page -- http://www.php.net/manual/en/function.preg-replace.php Edit -- https://master.php.net/note/edit/104965 Del: integrated -- https://master.php.net/note/delete/104965/integrated Del: useless -- https://master.php.net/note/delete/104965/useless Del: bad code -- https://master.php.net/note/delete/104965/bad+code Del: spam -- https://master.php.net/note/delete/104965/spam Del: non-english -- https://master.php.net/note/delete/104965/non-english Del: in docs -- https://master.php.net/note/delete/104965/in+docs Del: other reasons-- https://master.php.net/note/delete/104965 Reject -- https://master.php.net/note/reject/104965 Search -- https://master.php.net/manage/user-notes.php