string md5_file(string $fileName [, bool $rawOutput = false ])
(PHP 4, PHP 5)
| $fileName | The source file 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 file referenced by $fileName or false if an error occurs (such as file not found). |
Computes a message digest hash (MD5) for the contents of the specified file ($fileName). This file must exists on the local filesystem (where the script is run) otherwise the method will return false.
// compute an MD5 hash for this script $md5 = md5_file(__FILE__); echo 'MD5 hash result: '.$md5;