I have wordpress 4.1 with the following plugin installed:

  • iThemes Security
  • WordPress SEO

I plugged in a function the facebook sdk.

This is the code:

add_action('wp_footer', 'my_footer');
function my_footer() {
    $post_to_check = get_post(get_the_ID());
    if ( is_singular() && has_shortcode( $post_to_check->post_content, 'myshortcode' ) ) {
var DEBUG = true;

        type : "POST",
        url : "index.php",
        data : { action : "value" },
        success : function(response){
            // the server has finished executing PHP and has returned something, so display it!
            if(DEBUG){ console.log('AJAX done...'); }

add_action('init', 'my_request');
function my_request() {
    if ( isset($_POST['action']) && $_POST['action'] == 'value' ) {


        require_once __DIR__ . "/sdk/autoload.php";

        use Facebook\FacebookSession;
        use Facebook\FacebookRequest;
        use Facebook\GraphUser;
        use Facebook\FacebookRedirectLoginHelper;
        use Facebook\FacebookSDKException;

        $app_id     = getAppId();
        $app_secret = getAppSecret();
        $rdr_fb_url = curPageURL();
        $required_scope = 'public_profile, email';

        if(empty($app_id) || empty($app_secret))

        FacebookSession::setDefaultApplication($app_id , $app_secret);

        $helper = new FacebookRedirectLoginHelper($rdr_fb_url);

        try {
          $session = $helper->getSessionFromRedirect();
        } catch(FacebookRequestException $ex) {
            // When Facebook returns an error
            die(" Error : " . $ex->getMessage());
        } catch(\Exception $ex) {
            // When validation fails or other local issues
            die(" Error : " . $ex->getMessage());


        if ($session){
            $user_profile = (new FacebookRequest($session, 'GET', '/me'))->execute()->getGraphObject(GraphUser::className());
            echo 'Hi'.$user_profile->getName();

            //display login url
            $login_url = $helper->getLoginUrl( array( 'scope' => $required_scope ) );

<div class="login">
    <a href="<?php echo $login_url; ?>">Login</a>

Works fine if i use this outside of wordpress. In wp var_dump($session); retrive always null. (no error given) Even after accepting the terms of the application. it is as if he could not get the code in the url.

I also tried to disable the plugin, but nothing.

I need php, please don't tell me to use javascript.

Sorry for my bad english :P

Edit: I use the permalink: http://www.myste.com/%year%/%monthnum%/%postname%/

I think the problem is the rewrite rule that hide a facebook get.

1 Answer 1


Solved: I entered the code outside of the ajax call, in function my_footer() {

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