CI_Encrypt::encode()

encode($string[, $key = ''])

Performs the data encryption and returns it as a string. Example:

$msg = 'My secret message';

$encrypted_string = $this->encrypt->encode($msg);

You can optionally pass your encryption key via the second parameter if you don’t want to use the one in your config file:

$msg = 'My secret message';
$key = 'super-secret-key';

$encrypted_string = $this->encrypt->encode($msg, $key);