PHP Introduction

PHP Introduction

Things what already should know are

Before continue it is good to have a basic understanding of the following: (but not mandatory)
• HTML
• CSS
• JavaScript


What PHP is

• PHP stands for PHP Hypertext Preprocessor a Widely-Used, Open Source, Server Side Scripting Language. 
• PHP is developed by Rasmus Lerdorf in 1994.
• PHP file runs on Web Server, not on the user's browser.  
• PHP and SQL are used to make Website Dynamic.
• PHP Embedded into an HTML page.
• PHP is best alternative to its competitors such as Microsoft's ASP.
• PHP is Cross Platform, that means PHP scripts run on various Operating Systems and Web Server like Window, Linux, Unix, , or an NT server./  APACHE, IIS

What PHP File is

• PHP file runs on the web server, and output comes to the browser as HTML.
• PHP file contains things like text, HTML, CSS, JavaScript, and PHP code etc.
• Extension that used in PHP file is .php, .php5 etc.

Some amazing facts about PHP are

• WordPress /Joomla/ Drupal the biggest powerful Blogging System and CMS that we have on the web.
• Facebook, the world largest popular Social Networking Website that we have, is written in PHP.
• More than 240 million websites developed in PHP as of January 2013 according to Wikipedia.

Benefits using PHP are

• Using PHP is, to run this on various operating systems (Windows, Unix, Linux, Mac OS X, etc).
• Using PHP is, to compatible almost all servers we used today (Apache, IIS, etc). 
• Using PHP is, to supports a wide range of databases (Mysql, MS sql, Oracle, Sybase, PostgreSql etc).
• Using PHP is, free to download and use (from the official PHP resource).
• Using PHP is, easy to learn and runs efficiently on the server.