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我发布了一个问题，寻求帮助来解决我遇到的问题，因为它本地化而被关闭。我现在已经缩小了我的问题。PHP登录脚本和SQL查询总是返回相同的用户ID
我问的原始问题可以看到PHP Login Script Returning Same user id?。
我的登录脚本出现问题。一切似乎工作正常，我没有得到任何错误或任何东西。
基本上当我登入user_uid（用户UID）从数据库中检索总是3，由于某种原因，没有得到正确的user_uid，但是所有存储在会话中的其他细节正确。
导致该问题的查询是这样的一个
$stmt = $dbh->prepare("
SELECT
*
FROM
users, users_roles, users_profiles
WHERE
user_login = :username
OR
user_email = :email
LIMIT 1");
如果我删除users_roles和users_profiles从SQL查询，并从刚刚用户表它得到正确的只是检索user_uid，必须与我从多个表中检索到的事实有关，并且查询在某处出现混乱。
这里有一个链接我的模式和SQL查询http://sqlfiddle.com/#!2/3cc32/1/0
下面以SqlFiddle是值的数组呼应的，由于某种原因，即使user_uid被假设是作为测试登录时账户phplover，它显示user_uid'3'是表中的第一行，似乎在某处发生冲突。
后进一步测试它似乎从用户得到正确的数据表除了user_uid，但它检索从users_profiles和users_roles在数据库中的第一行中的信息，也许是越来越来自用户的user_uid表正确，但也许查询覆盖它。
我跑的查询是phpMyAdmin，它仍然做同样的事情，肯定与我的SQL查询有关，我该如何修复我的查询，以便它检索到正确的user_uid？
Array
(
[user_uid] => 3 // should be 6, 3 is the user_uid of the first row in database, seems to just fetch first row :/
[user_status] => 1
[user_login] => PhpLover
[user_pass] => 5e79a29e6292e7690a6bf56484140114f1374933081d499b8cc5034685950a16668868cd0886d93f9bc634a5649a6037022a5ef62e9b5d13cda24619bbdf610b;507a7ea891f609.84619944
[user_email] => [email protected]
[user_registered] => 2012-10-14 09:58:16
[user_display_name] =>
[user_failed_logins] => 0
[id] => 3 // not sure where this is coming from but should be 6 like user_uid
[user_role] => subscriber
[user_gender] =>
[user_url] =>
[user_msn] =>
[user_aim] =>
[user_yim] =>
[user_twitter] =>
[user_facebook] =>
)
这里是我的登录脚本，没有必要表现出来，因为我已经缩小的问题记在我的SQL查询，但认为在情况下，它可以帮助人们进一步了解发生了什么事我会张贴。
<?php
// ob_start()
ob_start();
// Include config.php
require_once("".$_SERVER['DOCUMENT_ROOT']."/de-admin/config.php");
// if user is logged in redirect them to control panel
// an already logged in user cannot login whilst already logged in!
alreadyloggedin();
// top.inc.php
require_once($top_inc);
?>
<!-- Meta start -->
<title><?php echo SITE_NAME; ?> - Member Login</title>
<meta name="description" content="<?php echo SITE_NAME; ?> - Member Login, Sign in" />
<meta name="keywords" content="sign up, member, login, signin, account, membership, <?php echo SITE_NAME; ?>" />
<!-- Meta end -->
<?php
// sidebar.inc.php
require_once($sidebar_inc);
// main.inc.php
require_once($main_inc);
?>
<?php
if(isset($_POST['username_email'], $_POST['password'], $_POST[BOT_TEST], $_POST['token'])){
// check if form token is valid
IsValidFormTokenHash();
// initialize form errors array
$error = array();
// fetch form data
$username_email = trim($_POST['username_email']);
$password = trim($_POST['password']);
$bottest = $_POST[BOT_TEST];
// validate form data
if(empty($username_email)){
$error[] = 'Please enter your username or email address';
}
if(empty($password)){
$error[] = 'Please enter your password';
}
if(!empty($bottest)){
$error[] = 'Spambot detected, if your human please try again';
}
if(!empty($username_email) && !empty($password)){
try{
// connect to database
$dbh = sql_con();
// prepare query
$stmt = $dbh->prepare("
SELECT
*
FROM
users, users_roles, users_profiles
WHERE
users.user_login = :username
OR
users.user_email = :email
AND
users.user_uid = users_roles.user_uid
AND
users.user_uid = users_profiles.user_uid
LIMIT 1");
// execute query
$stmt->execute(array(':username' => $username_email, ':email' => $username_email));
if ($stmt->rowCount() > 0) {
$result = $stmt->fetch(PDO::FETCH_ASSOC);
echo '<pre>';
print_r($result);
echo '</pre>';
$user_db_pass = $result['user_pass'];
if(!ValidatePassword($password, $user_db_pass)){
$error[] = 'Invalid Login Details';
} else {
$user_status = $result['user_status'];
if($user_status == USER_STATUS_VERIFY){
$error[] = 'You must verify your account before you can log in';
}elseif($user_status == USER_STATUS_SUSPENDED){
$error[] = 'This account has been suspended';
}elseif($user_status == USER_STATUS_SPAM){
$error[] = 'This account has been marked as potentially spam';
} else {
// user valid
// fetch user details and assign there details to there sessions
$_SESSION['user_uid'] = $result['user_uid'];
$_SESSION['user_status'] = $result['user_status'];
$_SESSION['user_login'] = $result['user_login'];
$_SESSION['user_email'] = $result['user_email'];
$_SESSION['user_registered'] = $result['user_registered'];
$_SESSION['user_display_name'] = $result['user_display_name'];
$_SESSION['user_role'] = $result['user_role'];
$_SESSION['user_gender'] = $result['user_gender'];
$_SESSION['user_url'] = $result['user_url'];
$_SESSION['user_msn'] = $result['user_msn'];
$_SESSION['user_aim'] = $result['user_aim'];
$_SESSION['user_yim'] = $result['user_yim'];
$_SESSION['user_twitter'] = $result['user_twitter'];
$_SESSION['user_facebook'] = $result['user_facebook'];
// unset (destroy) form token
UnsetFormToken();
// On successful login get URI user was on
// so we can redirect them back to URI they was on
/*if(isset($_SESSION['redirect_to'])){
// if session redirect_to is found this means
// they tried to access a membersarea()
// so we get the URI and redirect to the
// secure page they tried accessing before logged in
$redirect_to = $_SESSION['redirect_to'];
// unset the session var
unset($_SESSION['redirect_to']);
// redirect
header("Location: ".SITE_URL."$redirect_to");
exit();
} else {
header("Location: /member/control-panel");
exit();
}*/
// now logged in redirect to control panel
//header("Location: /member/control-panel");
exit;
}
}
} else {
$error[] = 'Incorrect login details';
}
// close database connection
$dbh = null;
}
catch (PDOException $e){
ExceptionErrorHandler($e);
require_once($footer_inc);
exit;
}
}
// If errors found display errors
if(!empty($error)){
$SiteErrorMessages = '';
foreach($error as $msg){
$SiteErrorMessages .= "$msg <br />";
}
}
}
// display error messages
if(isset($SiteErrorMessages)){
SiteErrorMessages();
}
// the below values is to replace placeholders in tpl
$TemplateReplacementValues = array(
'SITE_NAME' => SITE_NAME,
'FORM_TOKEN_HASH' => GenerateFormTokenHash(),
'BOT_TEST' => BotTest()
);
// signup.tpl template location
$tpl = DOCUMENT_ROOT.'inc/tpl/login.tpl';
// load signup template
PageContentTemplate($tpl, $TemplateReplacementValues);
?>
<?php
// footer.inc.php
require_once($footer_inc);
// ob_end-flush
ob_end_flush();
?>
因为您的查询返回多行并且因为您限制显示1行...它总是选择'3'。你还没有加入3个表 – WatsMyName