1--TEST-- 2Bug #72710 (`mb_ereg` causes buffer overflow on regexp compile error) 3--SKIPIF-- 4<?php 5if (!extension_loaded('mbstring')) die('skip ext/mbstring required'); 6if (!function_exists('mb_ereg')) die('skip mbregex support not available'); 7?> 8--FILE-- 9<?php 10mb_ereg('(?<0>a)', 'a'); 11?> 12--EXPECTF-- 13Warning: mb_ereg(): mbregex compile err: invalid group name <0> in %s on line %d 14