PHP 
                 is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. 
                It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and Microsoft SQL Server. 
                MySQL is the most popular Open Source Relational SQL Database Management System. MySQL is one of the best RDBMS being used for developing various 
                web-based software applications.