(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_enc_self_test — Runs a self test on the opened module
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$td
)
This function runs the self test on the algorithm specified by the
descriptor td.
tdThe encryption descriptor.
If the self test succeeds it returns FALSE. In case of an error, it
returns TRUE.