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php 正则表达式,该如何处理

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Release: 2016-06-13 12:13:09
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php 正则表达式
$a ='A求值';
mb_eregi('A求值',$a,$tmp2);
var_dump($tmp2);




以上代码 不能匹配出来,但是把两个 ‘值’ 字都去掉就可以匹配出来,这是什么原因呢
------解决思路----------------------
显然你的程序是 utf-8 编码的

mb_regex_encoding ("utf-8"); //加上这个<br />$a ='A求值';<br />mb_eregi('A求值',$a,$tmp2);<br />var_dump($tmp2);
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array(1) {<br />  [0]=><br />  string(7) "A求值"<br />}<br /><br />
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