3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = '我这是怎么了'; echo preg_replace("/([u4e00-u9fa5].)/","<font color=red>1</font>",$str); $str = "php编程"; if (preg_match("/^[x{4e00}-x{9fa5}]+$/u",$str)) { print("该字符串全部是中文"); } else { print("该字符串不全部是中文"); } ?>
based on hqHV8
Output for 5.3.19 - 7.2.0
我这是怎么了 Warning: preg_match(): Compilation failed: range out of order in character class at offset 10 in /in/1hk8u on line 5 该字符串不全部是中文