PDO will not run since upgrading PHP to 5.4.22 - php

Question

I just recently upgraded my server's PHP version to 5.4.22, and now every script that uses PDO does not work.
An example of my PHP script which won't work:
<?php
$dsn = 'mysql:dbname=testDB;host=127.0.0.1';
$user = '[hidden]';
$password = '[hidden]';
try {
$pdo = new PDO($dsn, $user, $password);
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
exit;
}
?>
When i run the script i get: Fatal error: Class 'PDO' not found, i get this same error for every script that creates a connection.
I ran a check on puTTY to check PDO was even there and it found this:
root#cpanel [~]# php -m | grep -i pdo
PDO
pdo_mysql
pdo_sqlite
My php.ini has
extension=pdo.so
extension=pdo_sqlite.so
; sqlite was removed by EasyApache v3.22.24 on Sat Dec 14 23:24:10 2013 (PHP v5.4.x incompatibility)
; extension=sqlite.so
extension=pdo_mysql.so
phpinfo(); in PHP file claims im on PHP Version 5.3.10
How ever in my terminal # php -v says PHP 5.4.22
So this had really confused me why i'm getting two versions.

Answer 1

Your question shows that you are checking the PHP version via the command line. But PHP via a web browser is going to use a module loaded into Apache which is a completely different thing. So check the output of phpinfo(); in a PHP script loaded via the web browser. Is PDO installed or shows as installed via that?
Wherever your Apache config files are look for the directory mods-available and the file php5.load. Under Ubuntu 12.04 it would be in this path:
/etc/apache2/mods-available/php5.load
And the contents should be:
LoadModule php5_module /usr/lib/apache2/modules/libphp5.so
Does the path in that file match where the newly compiled libphp5.so is installed?
Also, that LoadModule php5_module line could be a part of your main Apache configuration. Look around to find where that is set. And then just set the path of the new module to me wherever it’s actually installed.