md5_file
PHP function
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(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
Calculates the md5 hash of a given file
Description
md5_file(string $filename, bool $binary = false): string|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
filenameThe filename
binaryWhen true, returns the digest in raw binary format with a length of 16.
Return Values
Returns a string on success, false otherwise.
Examples
Usage example of md5_file()
php
<?php
$file = '/examples/book.xml';
echo 'MD5 file hash of ' . $file . ': ' . md5_file($file);
?>