===== Syntax =====

<code php>
string md5(string $input [, bool $rawOutput = false ])
</code>

//(PHP 4, PHP 5)//

^ $input | The source content from which to compute an MD5 hash. |
^ $rawOutput | If this is set to true, output the result as raw binary. |
^ RETURNS | A message digest hash for the source content defined by **$input** or false if an error occurs. |

===== What it Does =====

Computes a message digest hash (MD5) for the contents defined by **$input**.  If any error
occurs, this method will return //false//.

===== Example =====

<code php>
// compute an MD5 hash for this script
$md5 = md5_file(__FILE__);
echo 'MD5 hash result: '.$md5;
</code>