Question

我有这个代码来推进ADD TO CART按钮：

if (isset($_POST['pid'])) {
$pid = $_POST['pid'];
$wasFound = false;
$i = 0;
// If the cart session variable is not set or cart array is empty
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) {
    // RUN IF THE CART IS EMPTY OR NOT SET
    $_SESSION["cart_array"] = array(0 => array("item_id" => $pid, "quantity" => 1));
} else {
    // RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
    foreach ($_SESSION["cart_array"] as $each_item) {
          $i++;
          while (list($key, $value) = each($each_item)) {
              if ($key == "item_id" && $value == $pid) {
                  // That item is in cart already so let's adjust its quantity using array_splice()
                  array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $pid, "quantity" => $each_item['quantity'] + 1)));
                  $wasFound = true;
              } // close if condition
          } // close while loop
       } // close foreach loop
       if ($wasFound == false) {
           array_push($_SESSION["cart_array"], array("item_id" => $pid, "quantity" => 1));
       }
}
exit();
}

我的添加按钮：

<form id="bd_itm1" name="bd_itm1" method="post" action="help_scripts/cart_functions.php">
      <input type="hidden" name="pid" id="pid" value="'. $id . '" />
      <input type="submit" name="button" id="button" value="Add to Cart" />
</form>

当我点击它时，它会将我带到cart.php，因为我告诉它我的标题（位置）。但我不想要它。我希望与广告按钮保持同一页面。现在，如果我删除我的标题（位置），它会将我带到一个空白页面。（但它仍然将项目添加到购物车）我的日志中没有错误。当然。：）

很多人都在谈论关于ajax和jquery的事情......但我对这些并不熟悉！

谢谢

我的动态列表代码:(我不知道发生了什么，但刚才它向我展示了你的问题）

$sql = mysql_query("SELECT * FROM products WHERE category='body' ORDER BY id ASC");
$productCount = mysql_num_rows($sql);
// count the output amount
if ($productCount > 0) {
        $i=0;
        $dynamicListBody = '<table width: 90%; margin-right: auto; margin-left: auto; color: #00E6AA;>';
        while($row = mysql_fetch_array($sql)){
            $id = $row["id"];
            $product_name = $row["product_name"];
            $details = $row["details"];
            $price = $row["price"];
            $date_added = strftime("%b %d, %Y", strtotime($row["date_added"]));
        $dynamicListBody .= ($i==0) ? '<tr>':'';
        $dynamicListBody .= '<td width="10%">
                    <img style="border:#666 1px solid;" src="../stock_photos/' . $id . '.png" height="80px" width="40px" alt="' . $product_name . '" />
                     </td>
                     <td width="35%">
                    <span class=itmttl>' . $product_name . '</span>
                    <br />
                    <span class=text>' . $details . '
                    <br />
                    €' . $price . '</span>
                    <br />
                      <form name="bd_itm" id="bd_itm" method="post" action="help_scripts/cart_functions.php">
                    <input type="hidden" name="pid" id="pid" value="' . $id . '" />
                    <input type="submit" name="button' . $id . '" id="button' . $id . '" value="Add to Cart" />
                    <br />
                    <br />
                      </form>
                     </td>';
        $dynamicListBody .= ($i==1) ? '</tr>':'';
        $i++;
        ($i==2) ? $i=0:'';
        }
        $dynamicListBody.='</table>';
        } else {
            $dynamicListBody = "We have no products listed in our store yet";
            }
        mysql_close();
?>

Answer 1

如果您不介意在按钮POST后刷新页面，可以在php代码中添加重定向，以便返回按钮所在的页面。

header('Location: http://domain.com/button/page.php');
exit();

如果您希望页面不刷新，则必须使用AJAX。

使用jquery：

$(':submit').click(function() {
    var keyValues = {
        pid : $(this).parent().find('input[name="pid"]').val()
    };
    $.post('help_scripts/cart_functions.php', keyValues, function(rsp) {
        // make your php script return some xml or json that gives the result
        // rsp will be the response
    });
    return false; // so the page doesn't POST
});

将上述javascript放在加载了按钮页面的.js文件中。

您可能希望在按下按钮时运行的php中进行此更改：

$_SESSION["cart_array"] = array(0 => array("item_id" => $pid, "quantity" => 1));

将上述内容更改为

$_SESSION["cart_array"] = array("item_id" => $pid, "quantity" => 1);

如果购物车数组未设置或为空，则运行此代码

添加项目并保留在当前页面中

1 个答案: