PHP (Hypertext Preprocessor) is one of the most widely used languages used to develop dynamic websites. PHP was developed in 1995 and is a server-side scripting language which means that PHP code is processed on the server and end result is sent to the user of the website in the form of plain HTML. As of January 2013, PHP was installed on more than 244 million websites and 2.1 million web servers.
The canonical PHP interpreter, powered by the Zend Engine, is free software released under the PHP License. PHP has been widely ported and can be deployed on most web servers on almost every operating system and platform, free of charge.
PHP is an open-source language which means that there are thousands of already built modules that can be modified to achieve the desired functionality. Also, PHP is easy to learn; you simply have to embed the code inside HTML. And if there was anything left, there are hundreds of PHP platforms available such as Joomla, WordPress, and Drupal that allow you to develop websites even more conveniently. PHP is one language that every programmer should learn if he or she plans to pursue a web developer’s career. PHP is also an integral part of the famous LAMP (Linux Apache MySQL and PHP) platform that Facebook, Yahoo, and other famous websites use. PHP has a huge job market, though not much highly paid when compared to ASP.NET developers; PHP developers easily find decent jobs.