Introduction of PHP

PHP was originally an acronym for Personal Home Pages, but is now a recursive acronym for PHP: Hypertext Preprocessor.

PHP is a server side scripting language that is embedded in HTML. It 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. PHP supports a large number of major protocols.

Common uses of PHP:

• PHP performs system functions, i.e. from files on a system it can create, open, read, write, and close them.
• PHP can handle forms, i.e. gather data from files, save data to a file, thru email you can send data, return data to the user.
• You add, delete, modify elements within your database thru PHP.
• Access cookies variables and set cookies.
• Using PHP, you can restrict users to access some pages of your website.
• It can encrypt data.