(PHP 4 >= 4.0.2)

mcrypt_module_self_test -- This function runs a self test on the specified module


bool mcrypt_module_self_test ( string algorithm [, string lib_dir])

This function runs the self test on the algorithm specified. The optional lib_dir parameter can contain the location of where the algorithm module is on the system.

The function returns TRUE if the self test succeeds, or FALSE when if fails.