PHP preg_match(): Compilation failed: PCRE does not support

开发中在使用preg_match()验证中文正则报错

解决方法：

/^[x80-xff]{6,30}$/ 

代替  

/^[u4e00-u9fa5]{2,32}$/

具体原理，参考：https://blog.csdn.net/u013101178/article/details/82756550