1--TEST-- 2Bug #68644 strlen incorrect : mbstring + func_overload=2 + UTF-8 + Opcache 3--INI-- 4opcache.enable=1 5opcache.enable_cli=1 6mbstring.func_overload=2 7mbstring.internal_encoding=UTF-8 8--SKIPIF-- 9<?php if (!extension_loaded('Zend OPcache') || !extension_loaded("mbstring")) die("skip"); ?> 10--FILE-- 11<?php 12var_dump(strlen("中国, 北京")); 13var_dump(mb_strlen("中国, 北京")); 14?> 15--EXPECT-- 16Deprecated: The mbstring.func_overload directive is deprecated in Unknown on line 0 17int(6) 18int(6) 19