I asked this question recently : PHP is not working on server
I asked my hosting service provider to enable these extensions in php.ini by removing semi colon .
;extension=php_mysql.so
;extension=php_mysqli.so
;extension=php_pdo_mysql.so
They replied me that there is no option like this present in php.ini file.
Please tell me what I tell them to what to do? Because without this I can't connect to database and many more things.
Note : They are running in Linux.