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md5
(PHP 4, PHP 5, PHP 7)
md5 — Calculate the md5 hash of a string
Warning
It is not recommended to use this function to secure passwords, due to the fast nature of this hashing algorithm. See the Password Hashing FAQ for details and best practices.
Description
string md5
( string
$str
[, bool $raw_output
= FALSE
] )
Calculates the MD5 hash of str
using the
» RSA Data Security, Inc.
MD5 Message-Digest Algorithm, and returns that hash.
Parameters
-
str
-
The string.
-
raw_output
-
If the optional
raw_output
is set toTRUE
, then the md5 digest is instead returned in raw binary format with a length of 16.
Examples
Example #1 A md5() example
<?php
$str = 'apple';
if (md5($str) === '1f3870be274f6c49b3e31a0c6728957f') {
echo "Would you like a green or red apple?";
}
?>
See Also
- md5_file() - Calculates the md5 hash of a given file
- sha1_file() - Calculate the sha1 hash of a file
- crc32() - Calculates the crc32 polynomial of a string
- sha1() - Calculate the sha1 hash of a string
- hash() - Generate a hash value (message digest)
- crypt() - One-way string hashing
- password_hash() - Creates a password hash
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Steph