im trying to get a code to make my Facebook page contents hide until the user like the page (simply change the page content after like)
I created a Facebook application about one year ago and it works well and did what i want https://www.facebook.com/app.graphicano/app_1417521298482387
**the Problem:**i created a new application and used the same code put its not working
https://www.facebook.com/app.graphicano/app_711341728921627?ref=page_internal
The code i'm using
<?php
require_once 'facebook.php'; //download at https://github.com/facebook/php-sdk/downloads
$facebook = new Facebook(array(
'appId' => 'APP ID', // enter your App's ID
'secret' => 'Secret', // enter your App's Secret
'cookie' => true,
));
?>
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.Canvas.setSize();
}
// Do things that will sometimes call sizeChangeCallback()
function sizeChangeCallback() {
FB.Canvas.setSize();
}
</script>
<?
// Did they like a page?
$signed_request = $_REQUEST["signed_request"];
list($encoded_sig, $payload) = explode('.', $signed_request, 2);
$data = json_decode(base64_decode(strtr($payload, '-_', '+/')), true);
//echo $signed_request.'<br>';
print_r ($data);
if (empty($data["page"]["liked"])) {
// DISPLAY TO: those who didn't LIKE the page
?>
<!-- Didn't Like -->
NON fan page
<!-- End of Didn't Like -->
<?
} else {
?>
Its a fan page
<? } ?>
i need to solve this problem as soon as possible
thanks
Like gating is not possible and not allowed anymore, see changelog: https://developers.facebook.com/docs/apps/changelog
Older Apps will still have that "liked" parameter, but they will always return "true" after 5th of November.
Related
i have created a facebook app and it works well for new users if they start the app with the direct server link (https://www.mydomain.com/app/index.php) and use the login button.
But if they try to use the app within facebook (https://apps.facebook.com/myapp) as a canvas app(for the first time) then they see the "landing" page of my app and the log in button. But if they click on it, an errormessage appears, that the content of the iframe couldn't be displayed. If they start the app in a new tab, then the login process works. (see the error below, sorry it's german, maybe you are familiar with this type of error message?)
It would be desirable if the new user could use the login link in the canvas app.
How can this be achieved? My index.php looks like this: (i am using the facebook SDK)
<?php
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
try {
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
} catch(FacebookApiException $e) {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
i have created a facebook app and it works well for new users if they start the app with the direct server link (https://www.mydomain.com/app/index.php) and use the login button.
But if they try to use the app within facebook (https://apps.facebook.com/myapp) as a canvas app(for the first time) then they see the "landing" page of my app and the log in button. But if they click on it, an errormessage appears, that the content of the iframe couldn't be displayed. If they start the app in a new tab, then the login process works. (see the error below, sorry it's german, maybe you are familiar with this type of error message?)
It would be desirable if the new user could use the login link in the canvas app.
How can this be achieved? My index.php looks like this: (i am using the facebook SDK)
<?php
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
try {
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
} catch(FacebookApiException $e) {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
I have a problem on Facebook App.
I want to make a fan-gate when any one enter the app url, Ex. apps.facebook.com/zoomcompetition/
I can't make it on the tab because it display blank.
but it works on the app url so I want to add fan-gate on the app appoint to Facebook Page.
This is the code
<?php
require 'src/facebook.php';
//require 'fbconfig.php';
require 'functions.php';
// Create An instance of our Facebook Application.
$facebook = new Facebook(array(
'appId' => ***************,
'secret' => **************,
));
// Get the app User ID
$user = $facebook->getUser();
if ($user) {
try {
// If the user is authenticated and logged-in
$user_profile = $facebook->api('/me');
//var_dump($user_profile);
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
// If the user is authenticated then generate the variable for the logout URL
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
?>
<!-- Insert Logged in HTML here -->
Logout
<?php
//Always place this code at the top of the Page
session_start();
if (!isset($_SESSION['id'])) {
// Redirection to login page facebook
header("location: index.php");
}
echo ' Welcome '.$_SESSION['username']; // or whatever you want your user to see.
$varri = "http://www.*****.ps";
?>
<iframe src=<?php print $varri; ?> scrolling="auto" width=100% height=100% frameborder="0"> </iframe>
<?php
$user = $facebook->getUser();
if ($user) {
$ret_obj = $facebook->api('/me/feed', 'POST',
array(
'link' => 'https://www.************.com',
'picture' => 'http://www.*******************.jpg',
'caption' => "أهلا وسهلا!",
'message' => ' Welcome '.$_SESSION['username'],
'uid'=> $facebook->getUser()
));
}
?>
<?php
} else {
$loginUrl = $facebook->getLoginUrl();
}
if (!empty($user_profile )) {
$username = $user_profile['name'];
$uid = $user_profile['id'];
$email = $user_profile['email'];
$user = new User();
$userdata = $user->checkUser($uid, 'facebook', $username,$email,$twitter_otoken,$twitter_otoken_secret);
if(!empty($userdata)){
session_start();
$_SESSION['id'] = $userdata['id'];
$_SESSION['oauth_id'] = $uid;
$_SESSION['username'] = $userdata['username'];
$_SESSION['email'] = $email;
$_SESSION['oauth_provider'] = $userdata['oauth_provider'];
//header("Location: home.php");
?>
<!--<!DOCTYPE>
<HTML>
<head>
<script>
function run(){
window.location.href = '/facebook/home.php';
}
</script>
</head>
<body onLoad="run()">
</body>
</html> -->
<?php
}
} else {
die("There was an error.");
}
}
else {
// Generate a session if there is none.
$login_url = $facebook->getLoginUrl(array( 'scope' => ' read_stream, publish_stream, email'));
?>
<!DOCTYPE>
<HTML>
<head>
<script>
function run(){
window.location.href = '<?php echo $login_url ?>';
}
</script>
</head>
<body onLoad="run()">
</body>
</html>
<?php
}
?>
Can you help me to solve one of the following:
What do I need to make it not display "Blank" on the tab?
2- How can I make a fan-gate for specific Facebook Pae if any one go to App
url directly?
What do I need to make it not display "Blank" on the tab?
Generate some output instead of nothing, I’d guess …?
How can I make a fan-gate for specific Facebook Pae if any one go to App url directly?
You can redirect from the canvas page to a specific page/app combination via JavaScript (top.location.href = "FB-Address of your page/app id combo"). And to check whether you’re on the canvas page, the simplest way to do so is give it an extra GET parameter in the canvas page address, which you then can evaluate in your code.
Building an app with the Facebook JavaScript API that will embedded into a page using the new iframe method.
I want to detect if they have liked the current page. Usually I would use print_r($_REQUEST) in PHP but that doesn't seem to work when using an iframe.
There is also this option: http://developers.facebook.com/docs/reference/fbml/visible-to-connection/ but it says its deprecated and I have never liked this method as its fairly hacky.
What is the way t do it now? Prefer to use XFBML + JavaScript API but can use PHP if required.
We've done this several times, and it seems to work pretty well. It uses XFBML to generate a Like Button widget and the JS SDK to render XFBML and subscribe to Facebook events. Code sample below:
edit: Since you're looking to detect if the user is a fan when the page loads, and FB deprecated the feature to let you get it directly from them when the canvas is loaded by passing fb_page_id to the address query string, you'll need an application install for the user to test their fan-dom of your page. It certainly adds a lot of friction to your application, but it is what it is for now - I guess.
<?php
require 'facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'YOUR APP ID',
'secret' => 'YOUR APP SECRET',
'cookie' => false,
));
try
{
$session = $facebook->getSession();
if (empty($session['uid']))
{
throw new Exception("User not connected to application.");
}
$is_fan = $facebook->api(array(
'method' => 'fql.query',
'query' => "SELECT uid, page_id FROM page_fan WHERE uid = {$session['uid']}"
));
if (false == $is_fan || count($is_fan) == 0) // 0 results will be returned if the user is not a fan
{
$is_fan = false;
}
else
{
$is_fan = true;
}
}
catch (FacebookApiException $e)
{
/**
* you don't have an active user session or required permissions
* for this user, so rdr to facebook to login.
**/
$loginUrl = $facebook->getLoginUrl(array(
'req_perms' => 'user_likes'
));
header('Location: ' . $loginUrl);
exit;
}
?>
<html>
<head>
</head>
<body>
<? if (empty($is_fan)): //user is not a fan. ?>
<fb:like href="http://www.facebook.com/your-facebook-page"
show_faces="true"
width="400">
</fb:like>
<? else: ?>
Yay! You're a fan!
<? endif; >?
<div id="fb-root"></div>
<script src="http://connect.facebook.net/en_US/all.js" type="text/javascript">
</script>
<script type="text/javascript">
FB.init({
appId: '<?= FB_APP_ID; ?>',
cookie: true,
status: true,
xfbml: true
});
// Subscribe to the edge creation event, from Facebook
FB.Event.subscribe('edge.create', function(response)
{
alert("Congratulations! We are so excited that you are a fan now! woot!")
});
</script>
</body>
</html>
okay, finally got got everything formatted with straight markdown. that wasn't painful at all.. (sike) :|
I'm very new to facebook platform.
I developed an iframe app. which after allowing permsiions, opens the application on my server and not in facebook iframe.
I hope i'm clear. I'm using $user = $facebook->require_login().
I read somewhere that adding $facebook->require_frame() would help but it didn't help.
The page reloads with new access token on each reload.
Someoe please help me.
Thanks in advance
Can you post some of the code you're using for the redirect?
If you use $facebook->GetLoginUrl to construct the Auth URL, the code should look like this -
$loginUrl = $facebook->getLoginUrl(array('canvas' => 1,
'fbconnect' => 0,
'req_perms' => 'permissions_here',
'next' => $canvas_base_url . 'index.php',
'cancel_url' => $canvas_base_url
));
In the Array, define your post authentication URL in 'next'. You should build it using the URL structure of http://apps.facebook.com/CANVASURL/yourpostauthpage.php.
In my snippet, I've created a variable ($canvas_base_url) to store my base URL.
my code is
<?
$api_key = 'xxxxxxxxxxxx';
$secret = 'xxxxxxxxxxxxx';
$appcallbackurl = 'http://www.phonecurry.com/fbapp/';
include_once 'facebook.php';
$facebook = new Facebook($api_key, $secret);
$user = $facebook->require_login();
try
{
if(!$facebook->api_client->users_isAppUser())
{
?>
<script language="JavaScript">
<!--
window.location = "http://www.facebook.com/login.php?v=1.0&api_key=xxxxxxxxxxxxx&next=http%3A%2F%2Fapps.facebook.com%2Fmycanvasapp%2F&canvas&req_perms=publish_stream";
</script>
<?php
}
}
catch (Exception $ex)
{
$facebook->set_user(null, null);
$facebook->redirect($appcallbackurl);
}
$has_permission = $facebook->api_client->users_hasAppPermission("publish_stream");
if(!$has_permission)
{
?>
<script language="JavaScript">
<!--
window.location = "http://www.facebook.com/login.php?v=1.0&api_key=xxxxxxx&next=http%3A%2F%2Fapps.facebook.com%2Fmycanvasapp%2F&canvas&req_perms=publish_stream";
</script>
<?php
}
?>