- str_replace: documentation ( source)
- preg_replace: documentation ( source)
<?php
$data1='疯狂的管道Test';
$data2='睡眠帮手-背景乐Test';
echo str_replace(preg_replace("/[^\x{4e00}-\x{9fa5}]+/u", '', $data1),'',$data1)
."<br>\n".
str_replace(preg_replace("/[^\x{4e00}-\x{9fa5}]+/u", '', $data2),'',$data2);