Description
string
md5_file ( string filename [, bool raw_output])
Calculates the MD5 hash of the specified
filename using the
RSA Data Security, Inc.
MD5 Message-Digest Algorithm, and returns that hash.
The hash is a 32-character hexadecimal number. If the optional
raw_output is set to TRUE, then the md5 digest
is instead returned in raw binary format with a length of 16.
Note:
The optional raw_output parameter was added in
PHP 5.0.0 and defaults to FALSE
This function has the same purpose of the command line utility
md5sum.
See also md5(),
crc32(), and
sha1_file().
