Postear en un Fanpage usando PHP o JavaScript

Hay que desarrollar o ayudar a desarrollar una funcion en php o una pequeña pagina que dado un codigo de una publicación de un comentario en un fan page, de respuesta a el. Tenemos el siguiente código hasta ahora pero aplicación responde que no hay autorización. <?php $fbId = '231705796841829'; // Valid access token, I used app token here but you might want to use a user token .. up to you $app_id = "xxxx"; $app_secret = "xxxx"; $post_id = "xxxx"; $redirect_uri = "[login to view URL]"; $accessToken = $app_id.'|'.$app_secret; $code_url = '[login to view URL]' . $app_id . '&redirect_uri=' . urlencode($redirect_uri) . '&scope=publish_stream'; $post_login_url = $redirect_uri; $code = $_REQUEST["code"]; //Obtain the access_token with publish_stream permission if(empty($code)){ $dialog_url= "[login to view URL]" . "client_id=" . $app_id . "&redirect_uri=" . urlencode( $post_login_url) . "&scope=publish_stream"; echo("<script>top.location.href='" . $dialog_url . "'</script>"); } else { /* $token_url="[login to view URL]" . "client_id=" . $app_id . "&redirect_uri=" . urlencode( $post_login_url) . "&client_secret=" . $app_secret . "&code=" . $code; $response = file_get_contents($token_url); $params = null; parse_str($response, $params); $access_token = $params['access_token']; */ // "[login to view URL]" $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$code_url); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($ch, CURLOPT_FOLLOWLOCATION ,1); curl_setopt($ch, CURLOPT_HEADER ,0); curl_setopt($ch, CURLOPT_RETURNTRANSFER ,1); $fb_code = curl_exec($ch); // get code curl_close($ch); $url = '[login to view URL]' . $fbId . '/feed'; $attachment = array( 'access_token' => $accessToken, 'message' => "Hi", ); $go = json_decode($go, TRUE); if( isset($post_id) ) { $url = "[login to view URL]".$post_id."/comments"; $attachment = array( 'access_token' => $accessToken, 'message' => "Hi comment", ); // set the target url $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $attachment); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $comment = curl_exec($ch); curl_close ($ch); $comment = json_decode($comment, TRUE); print_r($comment); } } ?>