(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_module_self_test — This function runs a self test on the specified module
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.
This function runs the self test on the algorithm specified.
algorithm
One of the MCRYPT_ciphername
constants, or the name of the algorithm as string.
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.
Example #1 mcrypt_module_self_test() example
<?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:
bool(true) bool(false)