我希望有人可以帮助解决一个问题，直觉上应该很简单，但问题的答案不在于我。出于某种原因，当我的用户注销时，他必须单击两次注销才能使其正常工作。我读过这个：
Any idea why I have to click the logout button twice to logout?
但它似乎没有起作用。这是我的注销按钮代码。有什么想法吗？谢谢！
<div id="loginStatusWrap">
<div id="loginStatus">
<?php
include('includes/APILogin.php');
if ( isset( $_POST['logout_btn'] ) )
{
unset($_COOKIE['kp_emailID']);
unset($_COOKIE['kp_pass']);
session_destroy();
}
// Check for login cookie - skip if session is available
if ( isset($_COOKIE['kp_emailID']) && isset($_COOKIE['kp_pass']) && !isset($_SESSION['kp_accountID']) )
{
$username = $_COOKIE['kp_emailID'];
$pass = $_COOKIE['kp_pass'];
$get_account_parameters = array(
'session' => $session_id,
'module_name' => 'kd_kp',
'query' => "kd_kp_cstm.username_c = '" . $_COOKIE['kp_emailID'] . "'",
'order_by' => "",
'offset' => '0',
'select_fields' => array(
//'username_c',
//'password_c',
//'id',
//'name',
),
'link_name_to_fields_array' => array( ),
'max_results' => '1',
'deleted' => '0',
'Favorites' => false,
);
$get_account_result = call('get_entry_list', $get_account_parameters, $url);
//echo '<pre>'; print_r($get_account_result); echo '</pre>';
if ( $_COOKIE['kp_pass'] != $get_account_result->entry_list[0]->name_value_list->password_c->value )
{
// not logged in
session_unset();
session_destroy();
?>
<div id="loginForm">
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
<input type="text" placeholder="EMAIL" value="<?=$_COOKIE['kp_emailID']?>" name="signIn_email" id="signIn_email"/>
<input type="password" placeholder="PASSWORD" id="signIn_pwd" name="signIn_pwd" />
<input type="submit" value="SIGN IN" name="login_btn" id="login_btn" />
<!--input type="submit" value="SIGN UP" name="signup_btn" id="signup_btn" /-->
</form>
</div><!-- //logInForm -->
<?php
} else {
// is logged in
$_SESSION['kp_accountID'] = $get_account_result->entry_list[0]->name_value_list->id->value;
$_SESSION['kp_name'] = $get_account_result->entry_list[0]->name_value_list->name->value;
// set cookies
$hour = time() + 3600;
setcookie("kp_emailID", $get_account_result->entry_list[0]->name_value_list->email1->value, $hour, "/", "kp.com");
setcookie("kp_pass", $get_account_result->entry_list[0]->name_value_list->password_c->value, $hour, "/", "kp.com");
?>
<div id="loginForm">
<h1>WELCOME, <?=$get_account_result->entry_list[0]->name_value_list->name->value?>
<form action="<?=$_SERVER['PHP_SELF']?>" method="post">
<input type="submit" value="LOG OUT" name="logout_btn" id="logout_btn" />
</form>
</div>
<?php
}
}
//if the login form is submitted
if ( isset( $_POST['login_btn'] ) )
{
// checks it against the database
if ( !get_magic_quotes_gpc() )
{
$_POST['signIn_email'] = addslashes($_POST['signIn_email']);
}
$get_account_parameters = array(
'session' => $session_id,
'module_name' => 'kd_kp',
'query' => "kd_kp_cstm.username_c = '".$_POST['signIn_email']."'",
'order_by' => "",
'offset' => '0',
'select_fields' => array(
//'username_c',
//'password_c',
//'id',
//'name',
),
'link_name_to_fields_array' => array( ),
'max_results' => '1',
'deleted' => '0',
'Favorites' => false,
);
$get_account_result = call('get_entry_list', $get_account_parameters, $url);
//Gives error if user dosen't exist
if ( $get_account_result->result_count == 0 )
{
?>
<div id="loginForm">
<a href='/sign-up.php'>Click Here to Register</a>
</div>
<?php
}
$_POST['pass'] = md5( stripslashes($_POST['signIn_pwd']) );
//gives error if the password is wrong
if ( $_POST['pass'] != stripslashes($get_account_result->entry_list[0]->name_value_list->password_c->value) )
{
//if ( !isset($get_account_result->entry_list[0]->name_value_list->password_c->value) )
{
?>
<div id="loginForm">
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
<input type="text" placeholder="EMAIL: TRY AGAIN" name="signIn_email" id="signIn_email"/>
<input type="password" placeholder="PASSWORD" id="signIn_pwd" name="signIn_pwd" />
<input type="submit" value="SIGN IN" name="login_btn" id="login_btn" />
<!--input type="submit" value="SIGN UP" name="signup_btn" id="signup_btn" /-->
</form>
</div><!-- //logInForm -->
<?php
}
//echo '<pre>'; print_r($_POST); echo '</pre>';
} else {
// if login is ok then we update session vars
$_SESSION['kp_emailID'] = stripslashes($_POST['signIn_email']);
//$_SESSION['kp_pass'] = $_POST['pass'];
$_SESSION['kp_accountID'] = $get_account_result->entry_list[0]->name_value_list->id->value;
$_SESSION['kp_name'] = $get_account_result->entry_list[0]->name_value_list->name->value;
?>
<div id="loginForm">
<h1>WELCOME, <?=$get_account_result->entry_list[0]->name_value_list->name->value?></h1>
<form action="<?=$_SERVER['PHP_SELF']?>" method="post">
<input type="submit" value="LOG OUT" name="logout_btn" id="logout_btn" />
</form>
</div><!-- //logInForm -->
<?php
}
} else {
// check for active session
if ( isset($_SESSION['kp_accountID']) )
{
?>
<div id="loginForm">
<h1>WELCOME, <?=$_SESSION['kp_name']?></h1>
<form action="<?=$_SERVER['PHP_SELF']?>" method="post">
<input type="submit" value="LOG OUT" name="logout_btn" id="logout_btn" />
</form>
</div>
<?php
} else {
// if they are not logged in
?>
<div id="loginForm">
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
<input type="text" placeholder="EMAIL" name="signIn_email" id="signIn_email"/>
<input type="password" placeholder="PASSWORD" id="signIn_pwd" name="signIn_pwd" />
<input type="submit" value="SIGN IN" name="login_btn" id="login_btn" />
<!--input type="submit" value="SIGN UP" name="signup_btn" id="signup_btn" /-->
</form>
</div><!-- //logInForm -->
<?php
}
}
//echo '<div style="float:left;"><pre>'; print_r($_POST); echo '</pre></div>';
//echo '<div style="float:left;"><pre>'; print_r($_SESSION); echo '</pre></div>';
//echo '<div style="float:left;"><pre>'; print_r($_COOKIE); echo '</pre></div>';
?>
<div class="clear"></div>
</div><!-- //loginStatus -->
</div><!-- //loginStatusBar -->
<!-- END loginbar.php !-->
谢谢！
答案 0 :(得分：4)
可能是因为在显示用户登录负载的页面部分之前，此代码未运行。因此，HTML显示他已登录但实际上他不是。
答案 1 :(得分：0)
销毁会话后，重定向到登录页面，以便刷新页面。
答案 2 :(得分：0)
在页面重新加载之前，浏览器无法识别cookie更改。
您的第一次点击是取消设置Cookie，但用户仍然保持登录状态 您的第二次点击是“重新加载”页面，现在未设置Cookie，它似乎可以正常工作。
向同一页面添加重定向（在取消设置和销毁会话后）以模拟刷新，并且您的按钮应该可以正常工作。
<强> P.S。
这是cookie如何工作的简化版本，但它基本上是准确的。
由于您在服务器上取消设置cookie，因此您必须再次请求页面获得不包含旧cookie信息的新HTTP标头。这就是重装会做的事情。
答案 3 :(得分：-2)
如果您通过FB登录到第三方网站，则必须注销两次以完成注销。