如何在php中单击产品时添加说明？_Php_Mysql

如何在php中单击产品时添加说明？

php mysql

如何在php中单击产品时添加说明？,php,mysql,Php,Mysql,我使用php和mysql创建了简单的商店这是我的index.php： <?php session_start(); require_once("dbcontroller.php"); $db_handle = new DBController(); if(!empty($_GET["action"])) { switch($_GET["action"]) { case "add": if(!empty($_POST["quantity"])) {

我使用php和mysql创建了简单的商店

这是我的index.php：

<?php
session_start();
require_once("dbcontroller.php");
$db_handle = new DBController();
if(!empty($_GET["action"])) {
switch($_GET["action"]) {
    case "add":
        if(!empty($_POST["quantity"])) {
            $productByCode = $db_handle->runQuery("SELECT * FROM tblproduct WHERE code='" . $_GET["code"] . "'");
            $itemArray = array($productByCode[0]["code"]=>array('name'=>$productByCode[0]["name"], 'code'=>$productByCode[0]["code"], 'quantity'=>$_POST["quantity"], 'price'=>$productByCode[0]["price"]));

            if(!empty($_SESSION["cart_item"])) {
                if(in_array($productByCode[0]["code"],$_SESSION["cart_item"])) {
                    foreach($_SESSION["cart_item"] as $k => $v) {
                            if($productByCode[0]["code"] == $k)
                                $_SESSION["cart_item"][$k]["quantity"] = $_POST["quantity"];
                    }
                } else {
                    $_SESSION["cart_item"] = array_merge($_SESSION["cart_item"],$itemArray);
                }
            } else {
                $_SESSION["cart_item"] = $itemArray;
            }
        }
    break;
    case "remove":
        if(!empty($_SESSION["cart_item"])) {
            foreach($_SESSION["cart_item"] as $k => $v) {
                    if($_GET["code"] == $k)
                        unset($_SESSION["cart_item"][$k]);              
                    if(empty($_SESSION["cart_item"]))
                        unset($_SESSION["cart_item"]);
            }
        }
    break;
    case "empty":
        unset($_SESSION["cart_item"]);
    break;  
}
}
?>
<HTML>
<HEAD>
<TITLE>Simple PHP Shopping Cart</TITLE>
<link href="style.css" type="text/css" rel="stylesheet" />
</HEAD>
<BODY>
<div id="shopping-cart">
<div class="txt-heading">Shopping Cart <a id="btnEmpty" href="index.php?action=empty">Empty Cart</a></div>
<?php
if(isset($_SESSION["cart_item"])){
    $item_total = 0;
?>  
<table cellpadding="10" cellspacing="1">
<tbody>
<tr>
<th><strong>Name</strong></th>
<th><strong>Code</strong></th>
<th><strong>Quantity</strong></th>
<th><strong>Price</strong></th>
<th><strong>Action</strong></th>
</tr>   
<?php       
    foreach ($_SESSION["cart_item"] as $item){
        ?>
                <tr>
                <td><strong><?php echo $item["name"]; ?></strong></td>
                <td><?php echo $item["code"]; ?></td>
                <td><input type="number" value="<?php echo $item["quantity"]; ?>"></td>
                <td align=right><?php echo "$".$item["price"]; ?></td>
                <td><a href="index.php?action=remove&code=<?php echo $item["code"]; ?>" class="btnRemoveAction">Remove Item</a></td>
                </tr>
                <?php
        $item_total += ($item["price"]*$item["quantity"]);
        }
        ?>

<tr>
<td colspan="5" align=right><strong>Total:</strong> <?php echo "$".$item_total; ?></td>
</tr>
</tbody>
</table>    

  <?php
}
?>
<div class="checkout"> <a href="checkout.php?action=empty">Checkout</a></div>   

</div>

<div id="product-grid">
    <div class="txt-heading">Products</div>
    <?php
    $product_array = $db_handle->runQuery("SELECT * FROM tblproduct ORDER BY id ASC");
    if (!empty($product_array)) { 
        foreach($product_array as $key=>$value){
    ?>
        <div class="product-item"><a href="index.php?action=add&code=<?php echo $product_array[$key]["code"]; ?>">
            <form method="post" action="index.php?action=add&code=<?php echo $product_array[$key]["code"]; ?>">
            <div class="product-image"><img src="<?php echo $product_array[$key]["image"]; ?>"></div>
            <div><strong><?php echo $product_array[$key]["name"]; ?></strong></div>
            <div class="product-price"><?php echo "$".$product_array[$key]["price"]; ?></div>
            <div><input type="text" name="quantity" value="1" size="2" /><input type="submit" value="Add to cart" class="btnAddAction" /></div>
            </form></a>
        </div>
    <?php
            }
    }
    ?>
</div>
</BODY>
</HTML>

大多数程序员处理此问题的方式如下：

在index.php中，您需要链接到详细信息页面（detail.php）

现在，您可以简单地从查询结果中回显描述：

Description: <?= $productByCode[0]['description']; ?>

你的问题有点让人困惑，你能更清楚地描述一下吗。在每个图像上创建一个链接，目标将为空并发送产品id。在下一页，通过此id从数据库获取描述并显示。没有足够的信息回答您的问题。您的产品是否存储在数据库中？你的表格结构是什么？请看我更新的帖子@JackOJack:Thanksys我必须添加描述。。我查一下。谢谢，请检查my detail.php，对吗？您还应该在完成查询后关闭PHP。在目的地之前：部分

<?php foreach ($_SESSION['cart_items'] as $item => data): ?>
    <a href="detail.php?id=<?= $item; ?>">Product</a>
<?php endforeach; ?>

$productByCode = $db_handle->runQuery("SELECT * FROM tblproduct WHERE code='" . $_GET["code"] . "'");

Description: <?= $productByCode[0]['description']; ?>

CREATE TABLE IF NOT EXISTS `tblproduct` (
  `id` int(8) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `code` varchar(255) NOT NULL,
  `image` text NOT NULL,
  `description` text NOT NULL,
  `price` double(10,2) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `product_code` (`code`)
);