A perfect shopping cart class. Recently, shopping cart was needed for a project, which may be frequently used. Therefore, it is encapsulated into a class for future calls. You can simply modify this class a little. Recently, a project needs to be used in the shopping cart. considering that this class may be used frequently, you can encapsulate it into a class for future calls. You can simply change this class a little bit can be used in your own program, the specific use of see asp $ type = 1 target = _ blank> http://bigeagle.wotoo.com/article.asp? Type = 1. SortCount = 0; session_start (); // initialize a session session_register (sId); session_register (sName); session_register (sPrice); session_register (sDiscount); session_register (sGoodPrice ); session_register (sCount); session_register (sMaxCount); $ this-> Update (); $ this-> Calculate ();} // ******* private, update function Update () {global $ sId, $ sName, $ sPrice, $ sCount, $ sDiscount, $ sMaxCount, $ sGoodPrice; if (! Isset ($ sId) or! Isset ($ sName) or! Isset ($ sPrice) or! Isset ($ sDiscount) or! Isset ($ sMaxCount) or! Isset ($ sGoodPrice) or! Isset ($ sCount) return; $ this-> Id = $ sId; $ this-> Name = $ sName; $ this-> Price = $ sPrice; $ this-> Count = $ sCount; $ this-> Discount = $ sDiscount; $ this-> GoodPrice = $ sGoodPrice; $ this-> MaxCount = $ sMaxCount; // calculate the total number of items $ this-> SortCount = count ($ sId);} // ******** private, function Calculate () {for ($ I = 0; $ I <$ this-> SortCount; $ I ++) {/* calculate the value of each item. if the Discount is 0, the Discount price */$ GiftPrice = ($ this-> Discount [$ I] = 0? $ This-> GoodPrice: ceil ($ this-> Price [$ I] * $ this-> Discount [$ I])/100 ); $ this-> TotalCost + = $ GiftPrice * $ this-> Count [$ I];} // The following *************** is the interface function // ***** plus a product // you can determine whether the product is blue or not. If yes, add count. otherwise, Add a new item. // first, change the session value. Then, call update () and calculate () to update the member variable function Add ($ a_ID, $ a_Name, $ a_Price, $ a_Discount, $ a_GoodPrice, $ a_MaxCount, $ a_Count) {global $ sId, $ sName, $ sCount, $ sPrice, $ sDiscount, $ sGoodPrice, $ sMaxCount; $ k = count ($ sId); for ($ I = 0; $ I <$ k; $ I ++) {// first check whether the product has been added to the if ($ sId [$ I] ==$ a_ID) {$ sCount [$ I] + = $ a_Count; break ;}} if ($ I >=$ k) {// if no, add a new product type $ sId [] = $ a_ID; $ sName [] = $ a_Name; $ sPrice [] = $ a_Price; $ sCount [] = $ a_Count; $ sGoodPrice [] = $ a_GoodPrice; $ sDiscount [] = $ a_Discount; $ sMaxCount [] = $ a_MaxCount;} $ this-> Update (); // Update the member data of the class $ this-> Calculate ();} // Remove a commodity function Remove ($ a_ID) {global $ sId, $ sName, $ sCount, $ sPrice, $ sDiscount, $ sGoodPrice, $ sMaxCount; $ k = count ($ sId); for ($ I = 0; $ I <$ k; $ I ++) {if ($ sId [$ I] ==$ a_ID) {$ sCount [$ I] = 0; break ;}$ this-> Update (); $ this-> Calculate () ;}// function ModifyCount ($ a_ I, $ a_Count) {global $ sCount; $ sCount [$ a_ I] = $ a_Count; $ this-> Update (); $ this-> Calculate ();} /***************************** clear all commodities ******** * *******************/function RemoveAll () {Register (sId); session_unregister (sName); session_unregister (sPrice); session_unregister (sDiscount); session_unregister (sGoodPrice); summary (sCount); summary (sMaxCount ); $ this-> SortCount = 0; $ this-> TotalCost = 0;} // whether a product is already in blue. the parameter is the ID function Exists ($ a_ID) of the product) {for ($ I = 0; $ I <$ this-> SortCount; $ I ++) {if ($ this-> Id [$ I] = $ a_ID) return TRUE;} return FALSE;} // function IndexOf ($ a_ID) {for ($ I = 0; $ I <$ this-> SortCount; $ I ++) {if ($ this-> Id [$ I] ==$ id) return $ I;} return 0 ;} // obtain the information of a product. The main function // returns an associated array, function Item ($ I) {$ Result [id] = $ this-> Id [$ I]; $ Result [name] = $ this-> Name [$ I]; $ Result [price] = $ this-> Price [$ I]; $ Result [count] = $ this-> Count [$ I]; $ Result [discount] = $ this-> Discount [$ I]; $ Result [goodprice] = $ this-> GoodPrice [$ I]; $ Result [maxcount] = $ this-> MaxCount [I]; return $ Result;} // obtain the total number of product categories function CartCount () {return $ this-> SortCount ;} // function GetTotalCost () {return $ this-> TotalCost ;}}
Bytes. You can simply modify this class a little...
