Question

我登录系统的查询在本地运行正常，但在服务器上传时。它不会在PHP中返回任何内容。这是查询：

"SELECT `UserID` 
   FROM `" . DB_NAME . "`.`Login` 
  WHERE `UserName` = '" . $UserName . "' 
    AND `UserPassword` = '" . $Password . "';"

...这是我的PHP代码：

$UserName = $_POST['txtUserName'];
$Password = md5($_POST['txtPassword']);

$qry = "SELECT `UserID` 
          FROM `" . DB_NAME . "`.`Login` 
         WHERE `UserName` = '" . $UserName . "' 
           AND `UserPassword` = '" . $Password . "';";

$result = mysql_query($qry);

session_start();

if ($result) {
    if (mysql_num_rows($result) > 0) {
        //Login Successful
        session_regenerate_id();
        $User = mysql_fetch_assoc($result);
        $_SESSION['UserID'] = $User['UserID'];
        session_write_close();
        mysql_close();
        exit();
    } else {
        //Login failed
        mysql_close();
        die('Invalid UserName and Password combination...');
    }
} else {
    mysql_close();
    die('Query failed...' . mysql_error());
}

返回的输出是：

Query failed...

Answer 1

As no one has responded in the answers area. I want to reply the post myself for future clarification of anyone arriving here and seeing this post.

问题在于表格的名称。我将其拼写为Login，而原始表格名称为login。

我不知道为什么这个东西只出现在服务器上。即，它在我的机器上本地工作正常，但问题仅在服务器上到达。

我通过在查询中重命名表名来修复此问题。

HTH，谢谢，

Mysql查询无法在服务器上工作但在本地工作正常

1 个答案: