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mcrypt_module_self_test

PHP function Edit on GitHub ✎

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

This function runs a self test on the specified module

Removed-7-2-0

Description

mcrypt_module_self_test(string $algorithm, [string $lib_dir]): bool

This function runs the self test on the algorithm specified.

algorithm: Cipher
lib_dir: The optional lib_dir parameter can contain the location where the algorithm module is on the system.

The function returns true if the self test succeeds, or false when it fails.

php

<?php
var_dump(mcrypt_module_self_test(MCRYPT_RIJNDAEL_128)) . "\n";
var_dump(mcrypt_module_self_test(MCRYPT_BOGUS_CYPHER));
?>

The above example will output:

output

bool(true)
bool(false)