PHP Introduction





PHP Introduction


Things you should know before learning PHP ?

Before starting PHP you must have the understanding of :

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What is PHP ?

  • PHP stands for Hypertext Preprocessor or personal home page.
  • PHP is an open source and widely used language.
  • PHP is server side scripting language therefore, PHP scripts runs on server.

What PHP file contains ?

  • PHP file consists of text,HTML,CSS,JavaScript and PHP code.
  • We run PHP scripts on servers and results are displayed in browser as Plain HTML.
  • PHP files have .php extension.

What can we do with the PHP?

  • We can generate dynamic page content through PHP.
  • We can create,open,read,close and delete files on the server.
  • We can collect and process data from the form in our web page.
  • We can send or recieve cookies using PHP.
  • We can insert,update or delete data in our database using PHP.
  • We can control user acess through PHP.
  • We can encrypt data through PHP.

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.

Benefits of PHP

  • Almost all platforms support PHP such as Windows, Mac,Unix,Linux etc.
  • PHP is supported by almost all servers such as Apache,IIS etc.
  • We can use wide range of databases in PHP.
  • It is a free and open source platform one can easily download it from its offical site PHP.net
  • It is easy and runs on server with great efficency.

What is New in PHP 7:

This the latest version of the PHP having following features:

  • PHP 7 is very faster than PHP 5.6(previous version of PHP).
  • Error Handling has improved to a great extent in this version.
  • PHP 7 supports stricter Type Declarations for function arguments.
  • This version supports some new operators such as :<=> (spaceship operator).



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