为何[u4e00-u9fa5]不能匹配中文

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Release: 2016-06-13 12:49:24
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为什么[\u4e00-\u9fa5]不能匹配中文
用php的preg_match()函数匹配中文的时候,
匹配规则这么写,

$rule ='/[\u4e00-\u9fa5]/';
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编译出错,说不知道\u,
该怎么办?
php怎么匹配utf-8编码的中文和gb2312编码的中文??

正则表达式
------解决方案--------------------
/[\x{4e00}-\x{9fa5}]/u
字符串需要unicode
------解决方案--------------------
gbk 和 utf-8是不一样的...utf-8很轻松的就可以匹配了...
------解决方案--------------------
你的php文件自身是gbk编码
或者charset没有设为utf-8
------解决方案--------------------
你的php文件不是utf-8编码
------解决方案--------------------
谁让你要所谓“国际化”呢?
中国第一!gbk 无所不能
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