Open the php.ini file
Once the file is opened, search for extension=php_pdo.dll and extension=php_pdo_mysql.dll and remove the comment of the front ";".
The final two lines of configuration are as follows:
Restart apache or iis service
Create a new PHP test with content:
You can test if the PDO module is enabled.
If your problem still can not solved, please submit open ticket to us.