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都可以用于字符串替换，strtr函数 与 str_replace有什么不同？

WBOY
Release： 2016-06-06 20:41:05
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如题，都可以被用于字符串替换，他们有什么不同？？

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如题，都可以被用于字符串替换，他们有什么不同？？

strtr是字符匹配， str_replace是字符串匹配

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