Facebook Logout Using PHP












0















I am using facebook's PHP SDK to log user into my website.
Now when I click on logout button, it successfully clears the session. When he again clicks on login with facebook button, he automatically logs into my website with the same facebook account he used before logging out instead of showing logging in page.



<?php
session_start();
/*
echo "before logout.</BR></BR>";
echo 'id: ' . $_SESSION['id']."</BR></BR>";
*/

require_once 'Facebook/autoload.php';
require_once 'Facebook/Facebook.php';

$config = array();
$config['appId'] = 'My Appid';
$config['secret'] = 'My Secret';
$config['fileUpload'] = false;

$fb = new FacebookFacebook([
'app_id' => 'My Appid', // Replace {app-id} with your app id
'app_secret' => 'My Secret',
'default_graph_version' => 'v3.2',
]);

//$facebook = new Facebook($config);
//$token = $fb->getAccessToken();

//$accessToken = $fb->getAccessToken(); // Not working - Error showing - undefined method

//echo $_SESSION['fb_access_token']; - This contains some long access token

unset($_SESSION['id']);
//echo $accessToken;
/*
echo "after logout.</BR></BR>";
echo 'id : '. $_SESSION['id']."</BR></BR>";
*/
//$url = 'https://www.facebook.com/logout.php?next=https://rocketevent.in&access_token='.$_SESSION['fb_access_token']; - going to facebook page, not returning back
//echo $url;
session_destroy();
$fb->getLogoutUrl();
//header('Location: '.$url);
//header("Location: ../../index.php");
?>









share|improve this question























  • If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

    – misorude
    Nov 13 '18 at 14:48













  • The user is only allowed to have one account. So does it matter?

    – WizKid
    Nov 13 '18 at 19:00
















0















I am using facebook's PHP SDK to log user into my website.
Now when I click on logout button, it successfully clears the session. When he again clicks on login with facebook button, he automatically logs into my website with the same facebook account he used before logging out instead of showing logging in page.



<?php
session_start();
/*
echo "before logout.</BR></BR>";
echo 'id: ' . $_SESSION['id']."</BR></BR>";
*/

require_once 'Facebook/autoload.php';
require_once 'Facebook/Facebook.php';

$config = array();
$config['appId'] = 'My Appid';
$config['secret'] = 'My Secret';
$config['fileUpload'] = false;

$fb = new FacebookFacebook([
'app_id' => 'My Appid', // Replace {app-id} with your app id
'app_secret' => 'My Secret',
'default_graph_version' => 'v3.2',
]);

//$facebook = new Facebook($config);
//$token = $fb->getAccessToken();

//$accessToken = $fb->getAccessToken(); // Not working - Error showing - undefined method

//echo $_SESSION['fb_access_token']; - This contains some long access token

unset($_SESSION['id']);
//echo $accessToken;
/*
echo "after logout.</BR></BR>";
echo 'id : '. $_SESSION['id']."</BR></BR>";
*/
//$url = 'https://www.facebook.com/logout.php?next=https://rocketevent.in&access_token='.$_SESSION['fb_access_token']; - going to facebook page, not returning back
//echo $url;
session_destroy();
$fb->getLogoutUrl();
//header('Location: '.$url);
//header("Location: ../../index.php");
?>









share|improve this question























  • If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

    – misorude
    Nov 13 '18 at 14:48













  • The user is only allowed to have one account. So does it matter?

    – WizKid
    Nov 13 '18 at 19:00














0












0








0








I am using facebook's PHP SDK to log user into my website.
Now when I click on logout button, it successfully clears the session. When he again clicks on login with facebook button, he automatically logs into my website with the same facebook account he used before logging out instead of showing logging in page.



<?php
session_start();
/*
echo "before logout.</BR></BR>";
echo 'id: ' . $_SESSION['id']."</BR></BR>";
*/

require_once 'Facebook/autoload.php';
require_once 'Facebook/Facebook.php';

$config = array();
$config['appId'] = 'My Appid';
$config['secret'] = 'My Secret';
$config['fileUpload'] = false;

$fb = new FacebookFacebook([
'app_id' => 'My Appid', // Replace {app-id} with your app id
'app_secret' => 'My Secret',
'default_graph_version' => 'v3.2',
]);

//$facebook = new Facebook($config);
//$token = $fb->getAccessToken();

//$accessToken = $fb->getAccessToken(); // Not working - Error showing - undefined method

//echo $_SESSION['fb_access_token']; - This contains some long access token

unset($_SESSION['id']);
//echo $accessToken;
/*
echo "after logout.</BR></BR>";
echo 'id : '. $_SESSION['id']."</BR></BR>";
*/
//$url = 'https://www.facebook.com/logout.php?next=https://rocketevent.in&access_token='.$_SESSION['fb_access_token']; - going to facebook page, not returning back
//echo $url;
session_destroy();
$fb->getLogoutUrl();
//header('Location: '.$url);
//header("Location: ../../index.php");
?>









share|improve this question














I am using facebook's PHP SDK to log user into my website.
Now when I click on logout button, it successfully clears the session. When he again clicks on login with facebook button, he automatically logs into my website with the same facebook account he used before logging out instead of showing logging in page.



<?php
session_start();
/*
echo "before logout.</BR></BR>";
echo 'id: ' . $_SESSION['id']."</BR></BR>";
*/

require_once 'Facebook/autoload.php';
require_once 'Facebook/Facebook.php';

$config = array();
$config['appId'] = 'My Appid';
$config['secret'] = 'My Secret';
$config['fileUpload'] = false;

$fb = new FacebookFacebook([
'app_id' => 'My Appid', // Replace {app-id} with your app id
'app_secret' => 'My Secret',
'default_graph_version' => 'v3.2',
]);

//$facebook = new Facebook($config);
//$token = $fb->getAccessToken();

//$accessToken = $fb->getAccessToken(); // Not working - Error showing - undefined method

//echo $_SESSION['fb_access_token']; - This contains some long access token

unset($_SESSION['id']);
//echo $accessToken;
/*
echo "after logout.</BR></BR>";
echo 'id : '. $_SESSION['id']."</BR></BR>";
*/
//$url = 'https://www.facebook.com/logout.php?next=https://rocketevent.in&access_token='.$_SESSION['fb_access_token']; - going to facebook page, not returning back
//echo $url;
session_destroy();
$fb->getLogoutUrl();
//header('Location: '.$url);
//header("Location: ../../index.php");
?>






facebook facebook-php-sdk facebook-login






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 13 '18 at 14:29









Yogesh ChaudhariYogesh Chaudhari

243




243













  • If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

    – misorude
    Nov 13 '18 at 14:48













  • The user is only allowed to have one account. So does it matter?

    – WizKid
    Nov 13 '18 at 19:00



















  • If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

    – misorude
    Nov 13 '18 at 14:48













  • The user is only allowed to have one account. So does it matter?

    – WizKid
    Nov 13 '18 at 19:00

















If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

– misorude
Nov 13 '18 at 14:48







If the user was logged into Facebook already before they logged in to your app, then this is the expected behavior, and nothing you can do anything about AFAIK. Only if the user logged in to Facebook in the process of logging in to your app, then calling this logout URL is supposed to log them out of your app and Facebook.

– misorude
Nov 13 '18 at 14:48















The user is only allowed to have one account. So does it matter?

– WizKid
Nov 13 '18 at 19:00





The user is only allowed to have one account. So does it matter?

– WizKid
Nov 13 '18 at 19:00












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53283244%2ffacebook-logout-using-php%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53283244%2ffacebook-logout-using-php%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Xamarin.iOS Cant Deploy on Iphone

Glorious Revolution

Dulmage-Mendelsohn matrix decomposition in Python