PHP means Hypertext Pre-processor or Personal Home Page. It is a server side scripting language.

That means it’s all codes only running with a web server existence. It‘s mostly using for design a dynamic or commercial sites. PHP5.0 is the latest version of php. It’s supported the OOP facility.

There are two types of web Server like as:

1. Live Server

2. Personal web Server.

Live Server: We need a real server for this process.

Personal Web server: After installation Third-party Software like as: ApachetoTriad or Xamp you can get a web server   & database server on your personal computer. After installed you have to put your all important .php extension files on the htdocs folder. Afterthat you’ can visit your web pages to write the following url http://localhost on the Internet Explorer address bar.  

Variable Declare in PHP:

To declare a variable you have to follow the following way:

$a =10;

$b=20;

$c=$a+$b;

echo “Total Value is=”.$c;

Method:

There are different types of method on PHP. Those method are doing some different operations from each other’s. Follow the brief description of all method of PHP :

$_GET : To passing value on the url.

$_POST : To passing value without url. We can also receive values by this methos.

$_REQUEST : It is the most latest method of PHP. We can only receive values by this method.

$_FILES : To upload a files using this method.

$_SESSION : For create a session we can use this method. This method only passing some random values.