Post a feed on facebook after a form on my website - php

Question

I have a news form on my website. After creating this news message I want to publish it on Facebook. I tried alot of things, but nothing was working. Here is my class:
<?php
class Facebook {
const FACEBOOK_APP_ID = 'MY_APP_ID';
const FACEBOOK_APP_SECRET = 'MY_APP_SECRET';
const FACEBOOK_ACCESS_TOKEN_URI = 'https://graph.facebook.com/oauth/access_token';
const FACEBOOK_FEED_URI = 'https://graph.facebook.com/app/feed';
private function getAccessToken() {
$params = array(
'client_id' => self::FACEBOOK_APP_ID,
'client_secret' => self::FACEBOOK_APP_SECRET,
'grant_type' => 'client_credentials',
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, self::FACEBOOK_ACCESS_TOKEN_URI);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
$data = curl_exec($ch);
curl_close($ch);
return substr($data, strpos($data, '=') + 1);
}
public function sendFeed() {
$params = array(
'access_token' => $this->getAccessToken(),
'message' => $message,
'name' => $name,
'link' => $url,
'description' => $description,
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, self::FACEBOOK_FEED_URI);
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, $params);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
curl_close ($ch);
return $data;
}
}
If I call the method sendFeed() it returns the following:
{"id":"404322099626551_404397542952340"}
I think the submit was successfull, but when I visit my page on facebook, there is no new feed. What am I doing wrong? I searched the complete day and couldn't get it to work. I thank you for your help.

Answer 1

What you are doing here is posting it on your user's feed. You are using a user access token. What you want to use is a page access token.
You'll need the manage_pages permission to perform tasks on behalf of your page.
In addition you should consider using the official PHP SDK, it'll make accessing Facebook's API much easier and improve readability.