我希望在ID的基础上访问。当我单击详细信息选项时，我只想在页面上显示该ID数据

Question

if (isset($_GET['pro_id'])){    
$product_id = $_GET['pro_id']; $get_pro = "select * from products"; $run_pro = mysqli_query($con, $get_pro);
while ($row_pro = mysqli_fetch_array($run_pro)){
$pro_id = $row_pro['product_id'];

        $pro_title = $row_pro['product_title'];
        $pro_price = $row_pro['product_price'];
        $pro_image = $row_pro['product_image'];
        //$pro_desc = $row_pro['product_desc'];
        echo "
        <div id = 'single_product'>
        <h3>$pro_title</h3>
        <img src='admin_area/product_images/$pro_image' width='400' height='300' />
        <p><b>Rs. $pro_price</b></p>
        <a href='index.php' style='float:left;'>Go Back</a><br>
        <a href='index.php?pro_id=$pro_id'><button style='float:right;'>Add to Cart</button></a>
        </div>  
        ";
        }
        }   
                    ?>

Answer 1

您需要在SQL查询中指定要获取的产品。您正在使用的那个，$get_pro = "select * from products";获取所有产品。您想将其更改为：

$get_pro = "select * from products WHERE product_id=".((int)$product_id);

因此它只选择一个产品，即$_GET['pro_id']中传递的产品。