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This article mainly explains the "php how to verify whether the text is md5 encoding", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in-depth, together to study and learn "php how to verify whether the text is md5 encoding" bar!

The code is very simple, using regular expressions, please refer to it.

The copy code is as follows:

Function is_md5 ($password) {

Return preg_match ("/ ^ [a-z0-9] {32} $/", $password)

}

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