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正则表达式和/的位置

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Release： 2016-06-13 10:54:12
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[php]  

define('DEDEADMIN', preg_replace("/[\\/]{1,}/", '/', dirname(__FILE__) ) );  

注意[\\/] 里的 第一个 \ 其实是个独立的文本字符，而 \/ 表示把 / 的意义转义为普通的文本字符

如果把正则表达式[]里的内容换成 [\/\] 或 [\/\\] 是不行的。会报错。

 

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