无法从数据库中删除行

我想从我的表中删除一些行。但是，当我点击删除，这只是给我一个空白页面。我很确定id值和我的db连接。无法从数据库中删除行

这是我的代码：

// connect to the database 
include('connect-db.php'); 

// confirm that the 'id' variable has been set 
if (isset($_GET['id']) && is_numeric($_GET['id'])) { 
    // get the 'id' variable from the URL 
    $id = $_GET['id']; 

    // delete record from database 
    if ($stmt = $mysqli->prepare("DELETE FROM my_table WHERE id = ? LIMIT 1")) { 
     $stmt->bind_param("i",$id); 
     $stmt->execute(); 
     $stmt->close(); 
    } else { 
     echo "ERROR: could not prepare SQL statement."; 
    } 
    $mysqli->close(); 

    // redirect user after delete is successful 
    header("Location: Dashboard.php"); 
} else { 
    // if the 'id' variable isn't set, redirect the user 
    header("Location: Dashboard.php"); 
}

来源

2016-04-24 Sajad Asadi

你能[打开错误报告]（http://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php），看看你得到什么错误？ – Chris