Question

我正在使用购物车项目，用户可以将多个商品添加到购物车中并从购物车中删除商品我在添加一个商品后使用会话我逐个增加ID，每个添加新商品到购物车中代码是工作是唯一的问题在删除当我试图从项目托盘中删除项目时它只删除一项是我的代码

<?php
session_start();
if(!empty($_GET["action"])) {
switch($_GET["action"]) {
   case "add":
   if(!isset($_SESSION['cart'])) {
           $item_id_session = 1;
           $_SESSION['cart'] = array();

    }
    else
        {
            $count = count($_SESSION['cart']); 
            $item_id_session = $count++;
        }

            $item = array();
            $item['item_id_session']= $item_id_session ;
            $item['title']=$_REQUEST['title'];
            $item['length_m']  =$_REQUEST['length_m'];
            $item['length_md']=$_REQUEST['length_md'];
            $item['length_cm'] =$_REQUEST['length_cm'];
            $item['length_cmd']=$_REQUEST['length_cmd'];
            $item['width_m']=$_REQUEST['width_m'];
            $item['width_md']=$_REQUEST['width_md'];
            $item['width_cm']=$_REQUEST['width_cm'];
            $item['width_cmd']=$_REQUEST['width_cmd'];
            $item['height_m']=$_REQUEST['height_m'];
            $item['height_md']=$_REQUEST['height_md'];
            $item['height_cm']=$_REQUEST['height_cm'];
            $item['height_cmd']=$_REQUEST['height_cmd'];
            $item['weight']=$_REQUEST['weight'];
            $item['weightd']=$_REQUEST['weightd'];
            $item['quantity']=$_REQUEST['quantity'];
            $item['image']=$_FILES["image"]["name"];
            $target_dir = "profile_images/";
            $item['image']= "profile_images/" . $_FILES["image"]["name"];
            $imageFileType = pathinfo($item['image'],PATHINFO_EXTENSION);
            $check = getimagesize($_FILES["image"]["tmp_name"]);
         if($check !== false) {
         echo "File is an image - " . $check["mime"] . ".";
        //$uploadOk = 1;
         move_uploaded_file($_FILES["image"]["tmp_name"], $item['image']);
         echo "The file ". basename( $_FILES["image"]["name"]). " has been uploaded.";
         }
           $_SESSION['cart'][] = $item;
   break;
   case "remove":
     if(!empty($_SESSION["cart"])) {
      foreach($_SESSION["cart"] as $k => $v) {
          if($_GET['item_id_session'] == $k)
            unset($_SESSION["cart"][$k]); 
            unset($_SESSION['cart'][$item_id_session]);      
          if(empty($_SESSION["cart"]))
            unset($_SESSION["cart"]);

      }
    }

   break;
     }
}
?>

这是我的删除按钮代码

    <a href="step3.php?action=remove&id=<?php echo $item["item_id_session"];?>"class="product-title">
    <span class="glyphicon glyphicon-trash pull-right"></span>
    </a>

Answer 1

尝试此操作。在向购物车添加商品时，您需要使用$item_id_session作为密钥。

 case "add":
    if (isset($_SESSION['cart']) && count($_SESSION['cart']) > 0) {
        $count = count($_SESSION['cart']);
        $item_id_session = $count+ 1;
    } else {

        $item_id_session = 1;
        $_SESSION['cart'] = array();
    }

                    $item = array();
                    $item['item_id_session']= $item_id_session ;
                    $item['title']=$_REQUEST['title'];
                    $item['length_m']  =$_REQUEST['length_m'];
                    $item['length_md']=$_REQUEST['length_md'];
                    $item['length_cm'] =$_REQUEST['length_cm'];
                    $item['length_cmd']=$_REQUEST['length_cmd'];
                    $item['width_m']=$_REQUEST['width_m'];
                    $item['width_md']=$_REQUEST['width_md'];
                    $item['width_cm']=$_REQUEST['width_cm'];
                    $item['width_cmd']=$_REQUEST['width_cmd'];
                    $item['height_m']=$_REQUEST['height_m'];
                    $item['height_md']=$_REQUEST['height_md'];
                    $item['height_cm']=$_REQUEST['height_cm'];
                    $item['height_cmd']=$_REQUEST['height_cmd'];
                    $item['weight']=$_REQUEST['weight'];
                    $item['weightd']=$_REQUEST['weightd'];
                    $item['quantity']=$_REQUEST['quantity'];
                    $item['image']=$_FILES["image"]["name"];
                    $target_dir = "profile_images/";
                    $item['image']= "profile_images/" . $_FILES["image"]["name"];
                    $imageFileType = pathinfo($item['image'],PATHINFO_EXTENSION);
                    $check = getimagesize($_FILES["image"]["tmp_name"]);
                 if($check !== false) {
                 echo "File is an image - " . $check["mime"] . ".";
                //$uploadOk = 1;
                 move_uploaded_file($_FILES["image"]["tmp_name"], $item['image']);
                 echo "The file ". basename( $_FILES["image"]["name"]). " has been uploaded.";
                 }
                   $_SESSION['cart'][$item_id_session] = $item;
           break;
           case "remove":
             if(!empty($_SESSION["cart"])) {
              foreach($_SESSION["cart"] as $k => $v) {
                  if($_GET['item_id_session'] == $k)
                    unset($_SESSION["cart"][$k]); 
              }
            }

           break;

如何在将项目添加到购物车后增加会话ID变量

1 个答案: