Php - Your PHP installation appears to be missing the MySQL extension which is required by WordPress

Question

How do I fix the error below?

Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

I

Answer 1

The source of this message was unrelated to the solution in my case.

My ip address of my server changed and i didn't change the directive in my httpd.conf of the apache server.

Once i changed it to the correct ip address the message disappeared and Wordpress is working again.