从数据库中获取单个ID的数据

Question

您好我正在从数据库中获取数据，但这只显示ID号。 1数据只有当我点击其他items.This是ID号的链接。 2一样表示ID的数据没有1

http://localhost/ecom/details.php?item_title=Sample2&id=2

if (isset($_GET['id'])) { 

          $id = isset($_GET['id']); 

          $sql = "SELECT * FROM men_watches WHERE id = '$id' "; 

          $run = mysqli_query($conn, $sql); 
           if (false === $run) { 
             echo mysql_error(); 
            } 

          while($row = mysqli_fetch_array($run)) { 
          $discounted_price = $row['item_price'] - $row['item_discount']; 

         echo " 
          <div class='col-md-6'> 
          <h3 class='pp-title'>$row[item_title]</h3> 
          <img src='$row[item_image]' class='img-responsive' > 
          <div class='bottom'> 

          <div class='pull-right cutted-price text-muted'><del>$ $row[item_price]</del></div> 
          <div class='clearfix'></div> 
          <div class='pull-right disscounted-price'>$$discounted_price</div> 
          </div> 
          <h4 class='pp-dsc-title'>Description</h4> 
          <div class='pp-dsc-detail'>$row[item_description]</div> 
          </div> 

        "; 
        } 
       }else { 
        echo "The request is not working"; 
       }  
      ?>  

这是我使用来从database.I的数据编程家伙很新，所以请大家帮我

Answer 1

代码

$id = isset($_GET['id']); => $ ID设定为1

变化

$id = isset($_GET['id']); 

要

$id = isset($_GET['id']) ? $_GET['id'] : 0;