- $ta = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $a));
- $tb = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $b));
+ $ta = mb_strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $a));
+ $tb = mb_strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $b));