Upgrade Encryption

What has been changed

  • The support for MCrypt has been dropped, as that has been deprecated as of PHP 7.2.

Upgrade Guide

  1. Within your configs the $config['encryption_key'] = 'abc123'; moved from application/config/config.php to public $key = 'abc123'; in app/Config/Encryption.php.
  2. Wherever you have used the encryption library you have to replace $this->load->library('encryption'); with $encrypter = service('encrypter'); and change the methods for encryption and decrypting like in the following code example.

Code Example

CodeIgniter Version 3.x

<?php

$this->load->library('encryption');

$plain_text = 'This is a plain-text message!';
$ciphertext = $this->encryption->encrypt($plain_text);

// Outputs: This is a plain-text message!
echo $this->encryption->decrypt($ciphertext);

CodeIgniter Version 4.x

<?php

$encrypter = service('encrypter');

$plainText  = 'This is a plain-text message!';
$ciphertext = $encrypter->encrypt($plainText);

// Outputs: This is a plain-text message!
echo $encrypter->decrypt($ciphertext);