PHP is an acronym for "PHP: Hypertext Preprocessor" and widely-used, open source scripting language scripts are executed on the server and that is especially suited for web development and can be embedded into HTML. PHP files can contain text, HTML, CSS, JavaScript, and PHP code and files have extension ".php". The PHP code is enclosed in special start and end processing instructions <?php and ?>. PHP is that the code is executed on the server, generating HTML which is then sent to the client. The best part about using PHP is that it is extremely simple for a newcomer, but offers many advanced features for a professional programmer. PHP was designed to work with HTML, and as such, it can be embedded into the HTML code.
<html><?php … ?></html>
PHP can generate dynamic page content, can create, open, read, write, delete, and close files on the server, can collect form data, can send and receive cookies, can add, delete, modify data in your database, can be used to control user-access, can encrypt data.
PHP runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.) and is compatible with almost all servers used today (Apache, IIS, etc.). And also supports supports a wide range of databases
