title: Apache, PHP and Percona Database
body: <p>I have just upgraded MySQL 5.0 to Percona XtraDB 5.1. I had to yum remove all the mysql stuff first. Everything was working fine, until I restarted Apache and now I get:</p>
  
  <p>Fatal error: Call to undefined function mysql_connect()</p>
  
  <p>Any ideas? I have a feeling I removed some sort of mysql plugin for apache at the same time.</p>