问cart中代码中的PHP解析内容

EN

a:3:{
    s:8:"products";
    a:7:{

        i:10;
        a:3:{
            s:10:"product_id";
            i:10; <- product id
            s:6:"amount";
            i:2; <- amount of product
            s:5:"price";
            s:6:"1.2500"; <- product price
        }

        i:11;
        a:3:{
            s:10:"product_id"; 
            i:11;
            s:6:"amount";
            i:9;
            s:5:"price";
            s:7:"1.2500";
        }
    }

    s:3:"sum";
    d:2.5000; <- this is total sum of cart
    s:6:"amount";
    i:49; <- this is total amount of products
}