I can't get any value from php Facebook graph api

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PHP

API

Facebook-API

This is my full code.

    <meta charset="utf-8">
    <?php
     
    // include required files form Facebook SDK
     
    require_once( 'Facebook/HttpClients/FacebookHttpable.php' );
    require_once( 'Facebook/HttpClients/FacebookCurl.php' );
    require_once( 'Facebook/HttpClients/FacebookCurlHttpClient.php' );
    require_once( 'Facebook/Entities/AccessToken.php' );
    require_once( 'Facebook/Entities/SignedRequest.php' );
    require_once( 'Facebook/FacebookSession.php' );
    require_once( 'Facebook/FacebookRedirectLoginHelper.php' );
    require_once( 'Facebook/FacebookRequest.php' );
    require_once( 'Facebook/FacebookResponse.php' );
    require_once( 'Facebook/FacebookSDKException.php' );
    require_once( 'Facebook/FacebookRequestException.php' );
    require_once( 'Facebook/FacebookOtherException.php' );
    require_once( 'Facebook/FacebookAuthorizationException.php' );
    require_once( 'Facebook/GraphObject.php' );
    require_once( 'Facebook/GraphSessionInfo.php' );
     
    use Facebook\HttpClients\FacebookHttpable;
    use Facebook\HttpClients\FacebookCurl;
    use Facebook\HttpClients\FacebookCurlHttpClient;
    use Facebook\Entities\AccessToken;
    use Facebook\Entities\SignedRequest;
    use Facebook\FacebookSession;
    use Facebook\FacebookRedirectLoginHelper;
    use Facebook\FacebookRequest;
    use Facebook\FacebookResponse;
    use Facebook\FacebookSDKException;
    use Facebook\FacebookRequestException;
    use Facebook\FacebookOtherException;
    use Facebook\FacebookAuthorizationException;
    use Facebook\GraphObject;
    use Facebook\GraphSessionInfo;
     
    // start session
    session_start();
     
    // init app with app id and secret
    FacebookSession::setDefaultApplication( 'KEY','SECRET' );
     
    // login helper with redirect_uri
    $helper = new FacebookRedirectLoginHelper( 'SITE_NAME.php' );
     
    // see if a existing session exists
    if ( isset( $_SESSION ) && isset( $_SESSION['fb_token'] ) ) {
      // create new session from saved access_token
      $session = new FacebookSession( $_SESSION['fb_token'] );
      
      // validate the access_token to make sure it's still valid
      try {
        if ( !$session->validate() ) {
          $session = null;
        }
      } catch ( Exception $e ) {
        // catch any exceptions
        $session = null;
      }
    }  
     
    if ( !isset( $session ) || $session === null ) {
      // no session exists
      
      try {
        $session = $helper->getSessionFromRedirect();
      } catch( FacebookRequestException $ex ) {
        // When Facebook returns an error
        // handle this better in production code
        print_r( $ex );
      } catch( Exception $ex ) {
        // When validation fails or other local issues
<pre lang="PHP">        // handle this better in production code
        print_r( $ex );
      }
      
    }
     
    // see if we have a session
    if ( isset( $session ) ) {
      
      // save the session
      $_SESSION['fb_token'] = $session->getToken();
      // create a session using saved token or the new one we generated at login
      $session = new FacebookSession( $session->getToken() );
      
      // graph api request for user data
      $request = new FacebookRequest( $session, 'GET', '***/1458726944414455/likes***' );
      $response = $request->execute();
      // get response
      $graphObject = $response->getGraphObject()->asArray();
      
      // print profile data
      echo '<pre>' . print_r( $graphObject, 1 ) . '

';

// print logout url using session and redirect_uri (logout.php page should destroy the session)
echo 'Logout';

} else {
// show login url
echo 'Login';
}



In *** *** section above, if I put some Facebook page names or 'me', the code works fine. But when I insert '/1458726944414455/likes' something like this, I can't get any value so the results are always like this
Array ( )

What makes me mad is, /1458726944414455/likes this works fine in https://developers.facebook.com/tools/explorer, which is Graph API explorer. I think token scope is not that different in Graph API explorer and my own website.

What is wrong? I searched every website which wrote about facebook php sdk or graph api, but they are using almost same code with me.

Is this because that I didn't do anything about Review Submission Form? I just using the default App Status & Review. But I thought that it doesn't matter because I don't do login with Facebook something like that. What is wrong?

Thank you for reading.