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PHP Shopping Cart Class_PHP Tutorial
- WBOYOriginal
- 2016-07-13 10:23:071001browse
PHP shopping cart class
PHP shopping cart class:
Because the requirements only record the type of product, and the number. For example, food, and then what number, like this. Therefore, the quantity of the product is not recorded. If you want to use it, you can just improve it yourself.
//setcookie("cart","s:26,45,4,4523423|d:17,7,27,26|e:12,13,123,43|f:34");
//cartAdd('e','167');
//getProInfo('z');
//delProInfo('f','26');
/**
* ***********
* Class for recording, modifying, and deleting COOKIE, for changes in local information of my plan
* LIQUAN
*/
class cart
{
/*
Implement COOKIES shopping cart
@type product type
@id product number
The result of COOKIES is type1:3,45,23|type2:34,234,34|type3:344,124
*/
Function cartAdd(type,id)
{
//If used for the first time, reset COOKIES
if(!isset(_COOKIE["cart"]))
{
setcookie("cart",type.":".id);
}
else
{
//If it’s not the first time, take it out first
cartStr=_COOKIE["cart"];
// Separate the results
cartarray=split("|",cartStr);
// Used to determine whether the type exists. If it does not exist initially, it will be zero
istype=0;
//Product number list
id_list;
// Recycling products
for (i=0;i
{
//Get the product name and product number list
list(carttype,product)=split(":",cartarray[i]);
//If the existing product is similar to the one to be saved, change isType to 1, indicating that the product already exists
if (type==carttype)
{
istype=1;
//Get the product number list
id_list=product;
//Interrupt loop
break ;
}
}
//If the product does not exist
if(istype==0)
{
//Add new products and product codes to COOKIES
cartStr=cartStr."|".type.":".id;
}
else
{
// Separate the product list into arrays
id_list=split(",",id_list);
//Identify whether the production port number exists, it does not exist initially
isId=0;
//Cycle product number
for(i=0;i
{
//If the product number to be saved already exists
if(id==id_list[i])
{
//The logo already exists. Exit the loop
isId=1;
break;
}
}
//Only the product type and product number are shown here, so the same ones do not add the quantity and are ignored directly
//If the product number of the relevant type does not exist, add a new number
if(isId!=1)
{
cartStr=str_replace(type.":",type.":".id.",",cartStr);
//cartStr=str_replace('d:','d:2,',cartStr);
}
}
setcookie("cart",cartStr);
print_r(_COOKIE["cart"]);
//setcookie("cart","",time()-100);
}
return ;
}
//Return to the corresponding product list
/*
@type product type
*/
Function getProInfo(type)
{
//Get shopping cart COOKIES
cartStr=_COOKIE["cart"];
// Match COOKIES characters and get the product list
preg_str=type.":((d+),)*(d+)";
//echo "
";
preg_match("/".preg_str."/",cartStr,proStr);
//echo proStr[0];
//exit();
List(protype,product)=split(":",proStr[0]);
return product;
//pro_list=split(",",product);
// Return to product list
//return pro_list;
// print_r(pro_list);
}
/*
*Delete product
*@type product type name
*@id product number
*/
Function delProInfo(type,id)
{
//Get shopping cart COOKIES
cartStr=_COOKIE["cart"];
// Match COOKIES characters and get the product list
preg_str=type.":((d+),)*(d+)";
//echo "
";
preg_match("/".preg_str."/i",cartStr,proStr);
//Only perform the following operations if you can find the type you want to delete
if(proStr)
{
//Query whether there is an ID to be deleted in the deleted type
isproId=strstr(proStr[0],id);
//If yes, then proceed with the following operations
if(isproId)
{
//Updated product string
upproStr;
//Updated with all the latest product COOKIES characters
newCartStr;
// Check whether there are multiple products to be deleted
preg_match("/,/",proStr[0],isend);
//If yes, perform the following operations
if(isend)
{
// Check if there are any products behind the product to be deleted
preg_match("/".id.",/",proStr[0],isdot);
//If there is, delete the following comma
if(isdot)
{
upproStr=str_replace(id.",","",proStr[0]);
}
//If not, delete the preceding comma
else
{
UpproStr=str_replace(",".id,"",proStr[0]);
}
//Update the string to be inserted into COOKIES
newCartStr=str_replace(proStr[0],upproStr,cartStr);
}
//If there are not more than one, delete the product directly
else
{
//Judge whether there are other products in this category
preg_match("/".proStr[0]."|/",cartStr,issu);
//If there is one, delete the following separator character
if(issu)
{
newCartStr=str_replace(proStr[0]."|","",cartStr);
}
//If not, delete the previous separator character
else
{
newCartStr=str_replace("|".proStr[0],"",cartStr);
}
}
setcookie("cart",newCartStr);
}
}
}
Function deletecart()
{
setcookie("cart","",time()-100);
}
}
?>