String Functions
PHP Manual

md5_file

Calculates the md5 hash of a given file

Description

stringfalse md5_file(string $filename, bool $binary = false)

Calculates the MD5 hash of the file specified by the filename parameter using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash. The hash is a 32-character hexadecimal number.

Parameters

filename

The filename

binary

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

Return Values

Returns a string on success, false otherwise.

Examples

Example #1 Usage example of md5_file

<?php
$file = '/examples/book.xml';

echo 'MD5 file hash of ' . $file . ': ' . md5_file($file);
?>

See Also

  • hash_file
  • hash_init
  • md5