So…. When trying to access one of my WordPress sites I got the message:
Your PHP installation appears to be missing the MySQL extension which is required by WordPress.
No problem I thought, must be a fault with PHP/Wordpress interaction, I’ll just upgrade to the latest version of WordPress. Oh, wait, I can’t access the WordPress dashboard – just get the same message.
I small amount of internet searching later and the solution was simple. I’m using Cpanel, so scrolled down to “Software” and clicked on “MultiPHP Manager”. Then I check the box against the domain causing an issue choose an earlier PHO version from the dropdown above, clicked Apply and… Hey Presto! Fixed – site and dashboard now work again.
I then upgraded WordPress via the dashboard and when done went back to “MultiPHP Manager” selected the relevant domain and reapplied “Inherit”.