我在隐藏输入字段中给出一个值
<input type='hidden' name='amount_{$smarty.foreach.product.index+1}' id="amount" value='{$product[0].price}'>
上面的代码打印
<input type="hidden" name="amount_1" id="amount" value="$[Object] - $[object Object]">
但如果我单独打印{$product[0].price}此值（不在输入字段中），则会打印正确的值
更新
我在这里设置值，产品ID名称和数量到cookie，我认为问题出在else部分，因为问题仅出现在第一个项目中..我也从数据库中获取价格。
function addtocart($product_id, $quantity){
$results = $this->db->rawQuery("select * from products where id=?", [$product_id]);
$id = $results[0]['id'];
$name = $results[0]['name'];
if(isset($_COOKIE['products'])){
$products = $_COOKIE['products'];
$products = json_decode($products,true);
foreach($products as &$product){
if($product['id'] == $product_id){
$product['quantity'] += $quantity;
setcookie('products',json_encode($products),strtotime( '+30 days' ));
echo 'done';
return;
}
}
$item = ['id' => $id,'name' => $name,'quantity' => $quantity];
$products[] = $item;
print_r($products);
setcookie('products',json_encode($products),strtotime( '+30 days' ));
echo 'done';
}else{
//echo 'else';die();
$products = array();
$item = ['id' => $id,'name' => $name,'quantity' => $quantity];
$products[] = $item;
//print_r($products);
setcookie('products',json_encode($products),strtotime( '+30 days' ));
echo 'done';
}
}
并在结帐页面
if(!empty($_COOKIE['products'])){
$products_in_cart = json_decode($_COOKIE['products'],true);
foreach($products_in_cart as $product){
$db->where('id',$product['id']);
$item = $db->get('products');
$item[0]['quantity'] = $product['quantity'];
$products[] = $item;
}
}
$objSmarty->assign('products',$products);
Array-我使用{$ products | print_r}：
将其打印在模板文件中Array
(
[0] => Array
(
[0] => Array
(
[id] => 4
[name] => Rug Rat
[code] => Part #E13
[price] => 59.95
[image] => acc2.jpg
[catid] => 3
[subcatid] => 0
[description] =>product One description.
[status] => Y
[quantity] => 2
)
)
[1] => Array
(
[0] => Array
(
[id] => 6
[name] => Mophead Floor Tool
[code] => Part #A52
[price] => 36.95
[image] => acc4.jpg
[catid] => 3
[subcatid] => 0
[description] => product two description.
[status] => Y
[quantity] => 1
)
)
)
在模板文件中：
{foreach from=$products item='product' name='product'}
{$product[0].price|trim}
<input type='hidden' class="name" name='item_name_{$smarty.foreach.product.index+1}' value='{$product[0].name|escape}'>
<input type='hidden' name='amount_{$smarty.foreach.product.index+1}' id="amount" value='{$product[0].price}'>
<input type="hidden" name="quantity_{$smarty.foreach.product.index+1}" value="{$product[0].quantity|escape}">
{/foreach}