By A Web Design
Download the latest stable build of PHP from URL http://www.php.net/downloads.php .
Open a browser window and enter http://www.google.com in the address bar and hit GO.
In the Google search window that opens search for php download as shown in Diagram 1.

Diagram 1
In the Search results window Click on the php.net/downloads.php link as shown in Diagram 2.

Diagram 2
When the php.net site opens in the Browser window click on the windows binary link as shown in Diagram 3.

Diagram 3
Click on the zip file of Thread safe version of PHP as shown in Diagram 4.

Diagram 4
Save the zip file in the local drive of you system by clicking on the OK button of the window as shown in Diagram 5.

Diagram 5
The download process of PHP is successfully finished.