.jpeeeeg httpsssss://>.gif'; preg_match_all('~http[s]*://[^\s]+\.(jp[e]*g|png|gif)$~i', $str, $result); var_dump($result); preg_match_all('~http[s]*://[^\s]+\.(jp[e]*g|png|gif$)~i', $str, $result); var_dump($result);