Where can I get the php class for working with databases?

Question

PHP

Good afternoon everyone.
I'm looking for a php class that allows you to abstract from a specific database.
This class should have support for sqlite, MySQL, PostrgreSQL and Microsoft SQL server and the requirement php <=5.3
Maybe someone met this?

Answer 1

PDO supports all the databases you need

Answer 2

He probably means CRUD, but in PDO you have to write everything yourself