(https?://)?(www.)?[0-9A-Za-z]+\.com/[0-9A-Za-z]+/\?paged=[0-9]+
i am getting this error in php
Warning: preg_match_all() [function.preg-match-all]: Unknown modifier '?' in C:\xampp\htdocs\expression.php on line 19
i have test it on online testers it is giving correct results but when i ran it in preg match it gave above error