Why is MySQL support missing from PHP installation?

Our web servers run PHP 7+ as standard. In this version of PHP the MySQL module has been replaced by either the 'mysqli' or 'PDO_MySQL' extension. Read more about the MySQL extension deprecation on PHP's website. 

If you have a website using this module we recommend updating your code to use the latest modules. However, if this isn't feasible or you're using third-party software, you can run older versions of PHP on our Linux platform. You're able to switch between PHP 5.3, 5.4, 5.5, 5.6 - all of which support the older MySQL module - by using the 'Switch PHP Version' icon inside the control panel.