Skip to main content

Facebook connect using graph api

An example of using facebook graph api to authenticate users:

Setup a new application in facebook apps and get the app id and secret.

Now follow the steps:

Remember to give the same url in the below code, as that of the app settings.

<?php

if( !isset($_GET['code'])) { ?>

<a href="https://graph.facebook.com/oauth/authorize?client_id=xxxxxxxx&redirect_uri=http://xxxxxxxxxxxxxxxx/">Connect using Facebook</a>
<?php }

$code = trim($_GET['code']);
if(isset($_GET['code']))

$token = file_get_contents("https://graph.facebook.com/oauth/access_token?client_id=xxxxxxxx&redirect_uri=http://xxxxxxxxxxxxxxx&client_secret=xxxxxxxxxxxx&code=$code");
$token = explode("=", $token);
if(isset($_GET['code']))

$user = json_decode(file_get_contents('https://graph.facebook.com/me?access_token='.$token[1]));  print_r($user);

?>

Comments

  1. This is really a great post. I will be coming back for sure

    ReplyDelete
  2. Its realy realy gr8 to see your work. Good job, congrats, keep it up

    ReplyDelete

Post a Comment

Popular posts from this blog

php strip all tags

The below function can strip almost all tags from a string. function strip_all_tags($string) {     $string = preg_replace( '@<(script|style)[^>]*?>.*?@si', '', $string );     $string = strip_tags($string);     return trim($string); } $a = '<script type="text/javascript" src="jquery.js"></script> <div id="test" style="padding:5px; color:red;">Hello world</div>'; echo strip_all_tags($a); // outputs: Hello world

htaccess disable directory browsing, disable file listing, disable file access

There may be some personal or secure data in a file, that you want to hide from the end user, when it is viewed through a web browser. Ex: http://www.example.com/user_files/24/chat.txt In the above scenario, if the file "chat.txt" contains a secure data, and you dont want to allow end users to directly access the file, or to disable the file listing in the folder "user_files" or "24", use the below code in your .htaccess file inside "user_files" folder: Options -Indexes order allow,deny deny from all

css link remove dotted outline

Its quite awkward to look at the link, when it is clicked and the dotted outline appears on it. To overcome it, just add the following line to your css file: a { outline: 0; } For example, to remove the dotted outline for the menu links on your page, add this to your css: #navigation li a {    outline: 0; } ( Assuming you have this menu structure: <ul id="navigation"><li><a href="news.html">News</a></li></ul> )