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php里str_replace('$','$','\1')这句话是什么意思

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Release: 2016-06-02 11:33:43
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php里str_replace('$','\$','\1')这句话是什么意思

preg_replace("/[([^[]]*)]/eis", "'.'.str_replace('$','\$','\1')", $val);
如何替换成preg_replace_callback

我看了网上的一些替换方法,改之后,后台所有关于有选择性按钮旁边的文字都不显示了!

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