--TEST-- Bug #72710 (`mb_ereg` causes buffer overflow on regexp compile error) --SKIPIF-- <?php if (!extension_loaded('mbstring')) die('skip ext/mbstring required'); ?> --FILE-- <?php mb_ereg('(?<0>a)', 'a'); ?> --EXPECTF-- Warning: mb_ereg(): mbregex compile err: invalid group name <0> in %s on line %d