https://serverpilot.io/docs/guides/php/extensions/mcrypt/
Learn how to configure your server to enable the mcrypt extension in multiple versions of PHP.
installphpmcryptextensionserverpilot
https://www.php.net/manual/uk/function.mcrypt-create-iv.php
Creates an initialization vector (IV) from a random source
phpmcryptcreateivmanual
https://www.php.net/manual/ja/function.mcrypt-enc-get-algorithms-name.php
Returns the name of the opened algorithm
phpmcryptencgetalgorithms
https://www.php.net/manual/en/function.mcrypt-enc-get-key-size.php
Returns the maximum supported keysize of the opened mode
key sizephpmcryptencget
https://www.php.net/manual/it/function.mcrypt-enc-get-algorithms-name.php
Returns the name of the opened algorithm
phpmcryptencgetalgorithms