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# mcrypt_list_algorithms

(PHP 4 >= 4.0.2)

mcrypt_list_algorithms -- Get an array of all supported ciphers

## Description

array mcrypt_list_algorithms ( [string lib_dir])

mcrypt_list_algorithms() is used to get an array of all supported algorithms in the `lib_dir` parameter.

mcrypt_list_algorithms() takes an optional `lib_dir` parameter which specifies the directory where all algorithms are located. If not specifies, the value of the mcrypt.algorithms_dir `php.ini` directive is used.

Example 1. mcrypt_list_algorithms() Example
    <?php
        $algorithms = mcrypt_list_algorithms ("/usr/local/lib/libmcrypt");

        foreach ($algorithms as $cipher) {
            echo "$cipher<br />\n";
        }
    ?>
The above example will produce a list with all supported algorithms in the "/usr/local/lib/libmcrypt" directory.

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