Encryption / Description Alphanumeric 16 digits

[eluser]stef25[/eluser]
From Stackoverflow

Code:

$key = 'password to (en/de)crypt';
$string = 'string to be encrypted';

Encrypt
base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key))));

Decrypt
rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($string), MCRYPT_MODE_CBC, md5(md5($key))), "\0");