Fatal error: Class 'PDO' not found [duplicate] - pdo

Question

This question already has an answer here:
PDO class not found fatal error after upgrading to php 5.3.x
(1 answer)
Closed 9 years ago.
i'm very confused about this
Fatal error: Class 'PDO' not found in /home/itstec2/public_html/pard_config/class/Config.php on line 13
this is my Config.php
<?php
$dbhost=null;
$dbname=null;
$dbuser=null;
$dbpass=null;
$file = __DIR__ ."/config.json";
$array = file_get_contents($file);
$dbConfig=json_decode($array);
$pardConfig=new PDO('mysql:host='.$dbConfig[0].';'.'dbname='.$dbConfig[1],$dbConfig[2],$dbConfig[3]);
?>
Config.php file is working with all other includes.but it's not working with the domain. It has that fatal error .why is that ?
My Domain

Answer 1

If you compare the output of your phpinfo() function to the other directories, where it is working you'll notice that the PDO object is indeed not loaded and that it is using a different php.ini in the directory where it is not working. On the working parts PHP is using /usr/local/lib/php.ini while it is using /home/itstec2/public_html/php.ini in the directory where it isn't working.
Some providers allow you to use different PHP configurations for different parts within the web root. If you use an extra ini file for a specific directory you have to make sure that you have all necessary settings in there.