PHP Introduction

PHP Introduction

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PHP is a server scripting language and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft’s ASP.

What You Should Already Know

Before you continue you should have a basic understanding of the following:

  • HTML
  • CSS
  • JavaScript

If you want to study these subjects first, find the tutorials on our Home page.

What is PHP?

PHP is an acronym for “PHP: Hypertext Preprocessor”. It is widely-used, open source scripting language. PHP scripts are executed on the server also it’s free to download and use. It is powerful enough to be at the core of the biggest blogging system on the web (WordPress). It is deep enough to run the largest social network like Facebook. It is also easy enough to be a beginner’s first server side language. PHP is an amazing and popular language!

What is a PHP File?

PHP files can contain text, HTML, CSS, JavaScript, and PHP code. PHP code are executed on the server, and the result is returned to the browser as plain HTML.PHP files have extension “.php”

What Can PHP Do?

PHP can generate dynamic page content. It can create, open, read, write, delete, and close files on the server, collect form data, send and receive cookies. PHP can add, delete, and modify data in your database. Also it can be used to control user-access and encrypt data

With PHP you are not limited to output HTML. You can output images, PDF files, and even Flash movies. You can also output any text, such as XHTML and XML.

Why PHP?

  • PHP runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.)
  • PHP is compatible with almost all servers used today (Apache, IIS, etc.)
  • PHP supports a wide range of databases
  • PHP is free. Download it from the official PHP resource:
  • PHP is easy to learn and runs efficiently on the server side


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