PDO查询不起作用

Question

我测试过它，SESSION ID发出一个有效的ID，所有其他参数也一样。帮我。

$sql = 'UPDATE users SET firstname = :firstname, lastname = :lastname WHERE id = :id'; 
$records->bindParam(':id',$_SESSION['user_id']); 

     $stmt = $conn->prepare($sql); 
     list($firstname, $lastname) = explode(' ', $nn); 

     $stmt->bindParam(':firstname', $firstname); 
     $stmt->bindParam(':lastname', $lastname); 

     if($stmt->execute()) { 



     } else { 

      die("An error adapted during changes."); 

     } 

Answer 1

我以为你的查询应该是这样的。

$sql = 'UPDATE users SET firstname = :firstname,  lastname = :lastname WHERE id = :id' ; 
$stmt = $conn->prepare($sql); 
list($firstname, $lastname) = explode(' ', $nn); 
$stmt->bindParam(':id',$_SESSION['user_id']); 
$stmt->bindParam(':firstname', $firstname); 
$stmt->bindParam(':lastname', $lastname); 
if($stmt->execute()) { 



    } else { 

     die("An error adapted during changes."); 

    }