if (isset($_GET["del_token"]) && isset($_SESSION["fb_token"])) {
unset($_SESSION["fb_token"]);
}
// Create a new Facebook object.
$facebook = new OAuthFacebook("0000000000000000", "0000000000000000000000000000000000000000", array("session_prefix" => "fb_"));
// Output a Login Button.
echo $facebook->loginButton("Login with Facebook", "https://example.com/facebook-1/code.php", array("email", "user_friends"));
// Try fetching the user's data. If an error is thrown, show a link to the login dialog.
if ($facebook->accessToken() != null) {
// The user is logged in, you can do whatever you like here.
// In this example we just print the profile data, along with the profile picture and permissions.
$profile = $facebook->userProfile();
echo "<pre>" . print_r($profile, true) . "</pre><br /><br />\n\n";
// Profile picture
$profilepicture = $facebook->profilePicture();
echo "<pre>" . print_r($profilepicture, true) . "</pre><br /><br />\n\n";
// Permissions
$permissions = $facebook->permissions();
echo "<pre>" . print_r($permissions, true) . "</pre><br /><br />\n\n";
// Friends
if ($facebook->permission("user_friends")) {
$request = $facebook->api(OAuth2::GET, "/me/friends");
$request->execute();
$friends = $request->responseObject();
} else {
$friends = "You have not granted access to Friends that also use this app.";
}
echo "<pre>" . print_r($permissions, true) . "</pre><br /><br />\n\n";
} else {
echo "You have not granted access to Facebook. Click the link above.\n";
}
