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字符集 - PHP怎么判断字符串里有没有乱码？9�2���5�

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Release： 2016-06-06 20:36:09
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例如：9�2���5�

请教各位。

如果字符串里有乱码这个字符串就不能用了，而不是剔除

回复内容：

例如：9�2���5�

请教各位。

如果字符串里有乱码这个字符串就不能用了，而不是剔除

用正则匹配除中文、数字、字母、符号之外的字符

黑魔法之json_encode( $text ) === 'null'

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php character set
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