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PHP | md5() Function

PHP md5() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP md5() Function.

The built-in PHP md5() function is used to calculate the md5 hash of a string. It uses the RSA Data Security, IncMD5 Message-Digest Algorithm.


Following below is the syntax to use this function -

string md5 ( string $str [, bool $raw_output = false ] )

Parameter Details

Sr.NoParameters & Description


It contains the information about string.



When TRUE, returns the digest in raw binary format with a length of 16.

Return Value

This function in PHP returns the hash as a 32-character hexadecimal number.


Try out the example below -

   $str = "webdesigntutorialz";
   echo md5($str);


When the above code is executed, it will produce the following result -


Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we will be studying about the PHP metaphone() Function.

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