Question

我遇到了我在下面写的代码问题。基本上，当购物车中有x个商品时，它会回显“购物车中有x个商品”的文字。然而，当没有物品时，它应该回应“你没有购物车中的任何物品”，而是回应什么。我做错了什么？

<?php 
    $array = unserialize($_SESSION['__vm']['vmcart']); 
    foreach($array->products as $product){
        $amount = $product->amount;
        if ($amount != 0){ echo "You have $amount item(s) in the cart."; } 
        else { echo "You don't have any items in the cart."; } 
    }
?>

Answer 1

因为代码不会出现在每个循环中。

<?php 
    $array = unserialize($_SESSION['__vm']['vmcart']); 
    if (count($array->products) > 0) {
      foreach($array->products as $product){
          $amount = $product->amount;
          echo "You have $amount item(s) in the cart."; 
          /* Do other thinks here. */
      }
    } else { 
     echo "You don't have any items in the cart."; 
    } 
?>

我不确定你为什么要使用循环btw。

Answer 2

删除你的foreach并使用此

if($size=sizeof($array->products))
echo "You have ".$size." item(s) in the cart.";
else
echo "You don't have any items in the cart.";

如果购物车商品= 0，则显示文字

2 个答案: