PHP is very popular scripting language which is designed to produce web pages dynamically.
Code written in PHP is embedded into html source of website, and run on web hosting server rather than on browser. So, if we look at source code of PHP web page, code which you see is only plain HTML code.
As PHP is universal scripting language, websites developed using PHP language compatible with popular mobile devices like iPad and iPhone. Large number of popular websites, include Wikipedia and Facebook, which are written in PHP.
Joomla, Drupal and WordPress are most commonly used content management system which is written in PHP. Lots of webmasters always choose all these three platforms to develop their websites because of flexibility.
There are many more plugins and themes which are especially created for all these three platforms and webmasters also can create professional looking websites based on all these systems with only few clicks. These themes are customized; webmasters can change coding to fit project needs.
PHP AND HOSTING
As already told, PHP is decoded on web hosting server. So, if website is written in PHP, this needs to be hosted on web server which has PHP processor module. This is very important to check with hosting service provider if hosting plan you using is being supported by PHP.
PHP Hosting is a server side computer programming language which is used to configure functionality and display of web pages. Term “PHP” is an acronym for term “PHP Hypertext Preprocessor“. PHP language is an open source language and is free to use, unlike a proprietary programming language like C# and ASP.
These proprietary languages interpreted by licensed software like Windows Server, as PHP runs on open source servers like Apache. However, PHP also runs on proprietary web server. Coded pages in PHP can be identified by file extension “.php”.
Many open source web applications like Drupal, Joomla and WordPress are written in PHP language. Open source ecommerce packages are ZenCart and OsCommerce and are written in PHP. In short, majority of web pages on Internet are more like developed/programmed using PHP language.
PHP vs. HTML
Server-side scripting languages like PHP, source code is being processed on server. It means that code is not exposed to end user like HTML and other programming languages. So, PHP code pages include segments of CSS, HTML or some other compatible languages. HTML pages include snippets of PHP to provide a server side functionality that the HTML code cannot accomplish, like saving or querying records to database.
What PHP can do?
PHP code can track and authenticate user’’s history on website. PHP language also performs complex calculations. Language can interpret type of device on which page is displayed and then displays version of page which best fits on device screen. PHP code pages can receive and send the cookies.
Blogs, Forums and other interactive web pages thread conversation between users which can be programmed with PHP language. XML pages can be served using PHP. PHP language enables programmer to alter appearance of graphics on fly. Programmers can alter, rotate and resize color of graphics using PHP coding like this displayed on the CAPTCHA verification.