Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<mcrypt_get_key_sizemcrypt_list_modes>
^Mcrypt FunctionsLast updated: Mon, 26 Oct 2026

mcrypt_list_algorithms

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_list_algorithms — Gets an array of all supported ciphers

Warning

This function has been DEPRECATED as of PHP 7.1.0 and REMOVED as of PHP 7.2.0. Relying on this function is highly discouraged.

Description

function mcrypt_list_algorithms(string $lib_dir = ini_get("mcrypt.algorithms_dir")): array

Gets the list of all supported algorithms in the lib_dir parameter.

Parameters

lib_dir

Specifies the directory where all algorithms are located. If not specified, the value of the mcrypt.algorithms_dir php.ini directive is used.

Return Values

Returns an array with all the supported algorithms.

Examples

Example #1 mcrypt_list_algorithms() Example

<?php
$algorithms = mcrypt_list_algorithms();
print_r($algorithms);
?>

The above example will output something similar to:

Array
(
    [0] => cast-128
    [1] => gost
    [2] => rijndael-128
    [3] => twofish
    [4] => arcfour
    [5] => cast-256
    [6] => loki97
    [7] => rijndael-192
    [8] => saferplus
    [9] => wake
    [10] => blowfish-compat
    [11] => des
    [12] => rijndael-256
    [13] => serpent
    [14] => xtea
    [15] => blowfish
    [16] => enigma
    [17] => rc2
    [18] => tripledes
)

<mcrypt_get_key_sizemcrypt_list_modes>
^Mcrypt FunctionsLast updated: Mon, 26 Oct 2026