MySQLiz module adds MySQLi database driver support to OpenCart for old versions of Opencart moved to modern hosting.
Removes “The mysql extension is deprecated...” error message in your Opencart when you have installed Opencart with latest versions of PHP. Supports edge-cutting versions of PHP 5, including PHP 5.5.+.

INSTALLATION

1. Extract everything from archive. You will see “upload” directory.
2. Copy all from “upload” directory to your Opencart directory (via FTP or SFTP).
3. In the config.php and admin/config.php replace “define('DB_DRIVER', 'mysql');” on “define('DB_DRIVER', 'mysqliz');”

As programmer I would recommend you invest into upgrade your current Opencart up to recent one & keep it updated.

This extension is not compatible with Opencart 1.5.6.1 and older. These versions have a native mysqli driver which is working correctly.