PHP (Hypertext Preprocessor) is a HTML embeded server side scripting language. (Cross Platform) PHP is a powerful server-side scripting language for creating dynamic and interactive websites.
PHP is the widely-used, free, and efficient alternative to ASP. PHP is perfectly suited for Web development and can be embedded directly into the HTML code. The PHP syntax is very similar to Perl and C. PHP is often used together with Apache (web server) on various operating systems.
The difference between a static page like HTML and dynamic page like PHP is the way the server interpret the request.
When ever request comes for a static html page the web server returns the page to the client, where as incase of PHP pages the server does not return the page directly to the client. The web server runs the PHP engine and the output of the executed script is posted back to the client machine.
Advantages of PHP:
PHP scripts are executed on the server and it supports many databases (MySQL, Oracle, Sybase etc.).
PHP is an open source software (OSS) and it is free to download and use
PHP files have a file extension of ".php".
PHP combined with MySQL are cross-platform (means that you can develop in Windows and serve on a Unix platform)
PHP runs on different platforms.
PHP is compatible with almost all servers used today.
PHP is FREE to download from www.php.net
PHP is easy to learn.
NOTE: Before you continue with PHP you should have a basic knowledge of HTML and some scripting languages. To learn HTML go to http://benshtml.blogspot.com/
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