Symmetric encryption algorithm provided by php | Mcrypt. class. php-PHP source code

Symmetric encryption algorithm provided by php | Mcrypt. class. php KEY is a previously defined constant
Mcrypt: encrypt ();
Mcrypt: decrypt ();

Defined ('root') or exit ('Access Denied '); class Mcrypt {public static function encrypt ($ code) {return base64_encode (mcrypt_encrypt (MCRYPT_RIJNDAEL_256, md5 (KEY ), $ code, encrypt, mcrypt_create_iv (Encrypt (encrypt, MCRYPT_MODE_ECB), MCRYPT_RAND);} public static function decrypt ($ code) {return mcrypt_decrypt (encrypt, md5 (KEY ), base64_decode ($ code), MCRYPT_MODE_ECB, mcrypt_create_iv (mcrypt_get_iv_size (MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND ));}}