Write a PHP script to develop a simple web page for an online shop to help the owner of the shop to manage his sales. The shop offers only three different items with different prices and gives a different percentage discount (%) on every sold item. You need to develop the web page by using only the basic HTML tags. The web page should satisfy the following specifications: Displays the name of the online shop. Displays the name, the unit price and the percentage discount of each item. Interacts with a customer to enter the number of units s/he wants to buy from each item. 1- 2- 3- 4- 5- Computes and displays the percentage discount of each sold item. Computes and displays the total amount of each item sold. Computes and displays the total amount of all sold items before and after applying the discount. 6- 7- Computes and displays the total discount amount Display a suitable message if the customer enters wrong values. 8