PHP data object (PDO) advance series: create database connection

PHP 🐘 data object (PDO) helps to create a connection with the database. One of the most important advantages is that it can create connections with the multiple databases, not just MYSQL. It supports 12 deferent databases like MySQL, PostgreSQL, MS SQL Server, Oracle, Firebird, Sybase, IBM, Informix, SQLite, FreeTDS, 4D, Cubrid.