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Programming PHP, 3rd Edition by Peter MacIntyre, Kevin Tatroe, Rasmus Lerdorf

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Name

md5

Synopsis

string md5(string string [, bool binary] )

Calculates the MD5 encryption hash of string and returns it. If the binary option is true then the MD5 hash returned is in raw binary format (length of 16), binary defaults to false, thus making MD5 return a full 32-character hex string.

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