PHP MySQL library version 5.0.51a differs from your MySQL server version 5.1.61 After asking last question about $id=$_GET['id']; and security issues I tried a PDO connection to my server. The following message appeared; ERROR: could not find driver.

I connected to phpMyAdmin - 2.11.1.2 and had this message appear;
Your PHP MySQL library version 5.0.51a differs from your MySQL server version 5.1.61. This may cause unpredictable behavior. 

Is there a connection? Are PDO drivers required on the server? Would MySqli work?

Bob
There is a connection otherwise phpmyadmin wouldnt know what version the server is.

In most cases you can ignore that as only slight differences exist (for a full difference check the changelogs between the versions) 

apt-get install php5-mysql

yum install php5-mysql


one of those should update your php library and not show that warning