更新PHP數據庫表中的記錄

Question

我正在嘗試通過從另一個.php文件獲取ID來更新表中的記錄。.但是它無法更新。請幫助。 這是我的代碼。

<?php
include('connection.php');
$member_id = $_GET['id']; 
echo ("You are going to edit/update record of employee with id #");echo $member_id;

if(isset($_REQUEST['submit']))
{
    $firstname =$_REQUEST['firstname'];
    $lastname =$_REQUEST['lastname'];
    $phone =$_REQUEST['phone'];    
    $insert = "update emp set SET firstname ={'$firstname'}, lastname = {'$lastname'} phone = {'$phone'} WHERE id = {'$member_id'}";
    mysql_query($insert);
}


?>

Answer 1

在這里，您有兩個SET並且由於該查詢失敗，您也忘記了,在phone = {

$insert = "update emp set SET firstname ={'$firstname'}, lastname = {'$lastname'} phone = {'$phone'} WHERE id = {'$member_id'}";

應該

$insert = "update emp SET firstname ={'$firstname'}, lastname = {'$lastname'}, phone = {'$phone'} WHERE id = {'$member_id'}";

編輯

寫這個檢查錯誤

mysql_query($insert) OR die(mysql_error());