How to create custom php.ini file for zend?

I used PDO_MYSQL connection in application.ini file of zend its work on localhost because extension=php_pdo_mysql.dll is enable. When i run code on server its throws exception Message: SQLSTATE[28000] [1045] Acces开发者_JAVA技巧s denied for user 'rdvscoin_main'@'host.indiandns.com' (using password: YES) because pdo_mysql is disable on server and i want enable that extension by custom php.ini file. For this what can i do? I want to create custom php.ini file but i don't known how can i create , where its can store? If any one have alternate idea then suggest me please.....

This has nothing to do with Zend, really. There is no such thing as a custom php.ini for a single project. You can run VirtualHosts with different settings, but even they all use the same ini file i think.

Rather have the administrator enable PDO extension (but EVERYONE has that running Oo)

But given the error i'd say its a permission problem, too - tried using 'localhost' instead of the specified?