Question

我是PHP的新手，我正在为我的网站制作购物车。问题是，当我点击“添加到购物车”按钮它进入cart.php页面，我试图显示产品名称，详细信息，价格，数量调整，总价格，删除项目，但它是没有显示产品的所有细节，它只显示数量。这是我显示购物车产品的代码。

$cartOutput="";
$cartTotal="";
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) 
{
    $cartOutput = "<h2 align='center'>Your shopping cart is empty</h2>";
} 
else 
{
    $i=0;
    foreach($_SESSION["cart_array"] as $each_item) 
        {
        $i++;
            $item_id = $each_item['item_id'];
        $result = mysqli_query($con, "SELECT * FROM products WHERE id='$item_id' LIMIT 1 ");
        if($result == FALSE) {
            die(mysql_error()); // TODO: better error handling
    }
    while($row = mysqli_fetch_array($result)) 
        {
            $id = $row["id"];
            $product_name = $row["product_name"];
            $price = $row["price"];
            $details = $row["details"];
        }
        $pricetotal = $price * $each_item['quantity'];
        $cartTotal = $pricetotal + $cartTotal;
        // Dynamic Table row assembly
        $cartOutput .= '<tr>';
        $cartOutput .= '<td align=\'center\' >' . $product_name . '<br/></td>';
        $cartOutput .= '<td align=\'center\' >' . $details . '</td>';
        $cartOutput .= '<td align=\'center\' >' . $price . '</td>';
        $cartOutput .= '<td>
            <form action="cart.php" method="post">
            <input name="quantity" type="text" value="' . $each_item['quantity'] . '" size="1" maxlength="2" />
            <input name="adjustBtn' . $item_id . '" type="submit" value="change" />
            <input name="item_to_adjust" type="hidden" value="' . $item_id . '" />
            </form>
            </td>';
        //$cartOutput .= '<td align=\'center\' >' . $each_item['quantity'] . '</td>';
        $cartOutput .= '<td align=\'center\' >' . $pricetotal . '</td>';
        $cartOutput .= '<td> <form action="cart.php" method="post">
            <input name="deleteBtn' . $item_id . '" type="submit" value="X" /> 
            <input name="index_to_remove" type="hidden" value="' . $i . '" /></form> </td>';
        $cartOutput .= '</tr>';
    $i++;

    }

}

（如果用户尝试从产品页面向购物车添加内容）

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) {

            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));
    }
}

header("location: cart.php"); 
exit();
}

显示产品

$dynamicList = "";

$result = mysqli_query($con,"SELECT * FROM products ");
$productCount = mysqli_num_rows($result); // count the output amount




if ($productCount > 0) {
while($row = mysqli_fetch_array($result)){ 
                 $id = $row["id"];
         $product_name = $row["product_name"];
         $product_code = $row["product_code"];
         $availability = $row["availability"];
         $price = $row["price"];
         $category = $row["category"];
         $subcategory = $row["subcategory"];
         $details = $row["details"];
         $date_added = strftime("%b %d, %Y",   
strtotime($row["date_added"]));
         // To show latest items on the home page

         $dynamicList .= ' <div class="product-items">
  <div class="product-block">
  <div class="product-block-inner">

                <div class="image">
                    <a href="product.php?id=' . $id . '"><img 
 src="product_images/' . $id . '.jpg" /> </a>
                </div>

                <div class="name">
                    <a href="product.php?id=' . $id . '">' . 
 $product_name . '</a>
                </div>
                <div class="price">
                    RS. ' . $price . '
                    <br />
                    Availability: ' . $availability . '
                </div>
                <div class="cart">
                    <form id="form1" name="form1" 
method="post" action="cart.php">
                        <input type="input" name="pid" id="pid" 
value="<?php echo $id; ?>" />
                        <input type="submit" name="button" 
id="button" class="button" value="Add to Shopping Cart" />
                        </form>

                </div>
</div>
</div>
</div>






                        '; 


}
} else {
$dynamicList = "We have no products listed in our store yet";

}

Answer 1

尝试这个

 <?php
    $cartOutput="";
    $cartTotal="";
    if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) 
    {
    $cartOutput = "<h2 align='center'>Your shopping cart is empty</h2>";
    } 
    else 
    {
    $i=0;
    foreach($_SESSION["cart_array"] as $each_item) 
        {
        $i++;
            $item_id = $each_item['item_id'];
        $result = mysqli_query($con, "SELECT * FROM products WHERE id='$item_id' 
    LIMIT 1 ");
         if($result == FALSE) {
            die(mysql_error()); // TODO: better error handling
        }
         $row = mysqli_fetch_array($result); 

                $id = $row["id"];
                $product_name = $row["product_name"];
                $price = $row["price"];
                $details = $row["details"];

            $pricetotal = $price * $each_item['quantity'];
            $cartTotal = $pricetotal + $cartTotal;
            // Dynamic Table row assembly
            $cartOutput .= '<tr>';
            $cartOutput .= '<td align=\'center\' >' . $product_name . '<br 
    /></td>';
            $cartOutput .= '<td align=\'center\' >' . $details . '</td>';
            $cartOutput .= '<td align=\'center\' >' . $price . '</td>';
            $cartOutput .= '<td>
            <form action="cart.php" method="post">
    <input name="quantity" type="text" value="' . $each_item['quantity'] . '" size="1" 
    maxlength="2" />
    <input name="adjustBtn' . $item_id . '" type="submit" value="change" />
    <input name="item_to_adjust" type="hidden" value="' . $item_id . '" />
    </form>
    </td>';
    //$cartOutput .= '<td align=\'center\' >' . $each_item['quantity'] . '</td>';
    $cartOutput .= '<td align=\'center\' >' . $pricetotal . '</td>';
    $cartOutput .= '<td> <form action="cart.php" method="post">
        <input name="deleteBtn' . $item_id . '" type="submit" value="X" /> 
        <input name="index_to_remove" type="hidden" value="' . $i . '" /></form> </td>';
    $cartOutput .= '</tr>';
    $i++;


        }

    }

    ?>

php中的购物车不显示产品详细信息

1 个答案: