Need programmer to make a simple PHP shopping cart

I need some simple PHP work done for a simple website shopping cart. The web site is made with simple html and has one page per item. On each page is a quantity field and an [Add to cart] button. I need a programmer to make a few small and simple PHP programs to do the following: When a user clicks [Add to cart] a PHP script should be called which adds a record into a MySQL table which will contain the user’s IP address, the item number and the quantity. After this it will display a simple html page which will ask the user if he wishes to continue shopping or check out. If the user decides to check out, he will press the [Check out] button which will call another PHP program that will get all the records in the database belonging to the current ip address and then: 1) Determine the state and country of the user by his IP address from a table in the database that contains a list of all IPs and their origin (SELECT state, country FROM ip_addresses WHERE ip_address block…); 2) Check the tax table to determine if the user is required to pay taxes based on his location, and if yes, update the cart table with the tax values to use (SELECT tax1rate,taxe2rate FROM tax_table WHERE state=<state> and country=<country>); 3) Calculate the shipping for each item based on a set price for the first item and an additional amount for each item as defined in the shipping table. (SELECT shipping_cost_additional_item FROM shipping_table WHERE itemnumber=#); 4) Calculate the shipping and the taxes and place the values in the cart table for the current IP; 5) Display a list of items from the cart_items table for the current IP and the totals from the cart table; 6) Allow the user to press a [Pay now] button which will bring the user to a secure payment page used to pay with credit card; 7) Get the result back from the secure payment page after the user has paid, and update the cart table with the status, either approved or rejected, then display a simple html message page based on the result; 5b) After this works, a small modification needs to be made to allow for a promo code. A field called promo code will must be included when the total page is displayed which displays the items in the shopping cart and the totals. If the user enters a promo code and presses [Recalculate] a php program must query the promo code table and determine if the promo code exists. If the promo code exists, the total must include a discount of X% found in the promo table and the totals recalculated. This must also be updated in the cart table to indicate that the user used a promo code. How will I evaluate your work: I will make a simple html page with a quantity field and an [Add to cart] button on it. I take your link and attach it to the [Add to cart] button which will call your php program add-item. After I have added the item your program will display a simple html page asking me to continue or check out. I will then press [Check out] and you will display the list of items with all my totals for me. I will then enter a promo code and press [Recalculate] and you will redisplay the list of items and the new totals. I will then click the [Pay now] button and you will send me to the credit card payment page on which I will pay and be returned to the web site. This is very simple PHP programming. I will supply the server with the MySQL and ftp and the web pages you will need. You will simply program a few quick and simple PHP programs to bring all the small parts together. This is not a complicated program for someone who is a PHP expert. My budget is 30$, so if you are unable to do this for 30$ please do not bid on this project. I would need this done as soon as possible. This is Part 1 of my project. The provider who successfully completes this simple project will be awarded the next step which is a more complex project to connect my web site with the courier systems of all the major courier companies, including Fedex, UPS, DHL, etc. Thank you