In What is PHP? you took an overall look at the PHP programming language, and what you can use it for. In this tutorial, you get to play with PHP and create your very first PHP script. Along the way you’ll learn some important basic concepts of PHP.
PHP is a programming language that you can use to write Web applications. A Web application can be anything from a simple “contact us” form through to a fully-fledged blogging system, online store, or forum system.