--TEST-- Bug #70345 (Multiple vulnerabilities related to PCRE functions) --FILE-- <?php $regex = '/(?=xyz\K)/'; $subject = "aaaaxyzaaaa"; $v = preg_split($regex, $subject); print_r($v); $regex = '/(a(?=xyz\K))/'; $subject = "aaaaxyzaaaa"; preg_match($regex, $subject, $matches); var_dump($matches); --EXPECTF-- Array ( [0] => aaaaxyzaaaa ) Warning: preg_match(): Get subpatterns list failed in %s on line %d array(0) { }