How do I publish to a Facebook page using the PHP SDK (5.0)?

Question

I’m developing an application to schedule hourly posts for my Facebook page, I can already log the user get User Access ID Token and everything else, I have the necessary permissions in the Facebook app, and I’ve been able to post image messages on the user’s profile, but I couldn’t get anything related to pages, all the codes I found didn’t work.

I need to get the list of pages that the user manages, get the access token (extended) of a given page and publish photos on Facebook with the page profile (I do not want to publish links, I want to publish only images with caption).

Could someone help me?

Answer 1

You have to generate one Token specific to page. There is on Facebook to do this.

After that are the same processes to make a POST on a profile, with the difference in the URL.

$fb = new Facebook\Facebook([
   'app_id'                => [APP_ID],
   'app_secret'            => [APP_SECRET],
   'default_graph_version' => 'v2.7',
]);

$linkData = [
    'link'          => '',
    'caption'       => '',
    'description'   => '',
    'name'          => '',
    'message'       => '',
    'picture'       => ''
];

$pageAccessToken ='';

try {
    $response = $fb->post('/NOME_DA_PAGE/feed', $linkData, $pageAccessToken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
    exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
    exit;
}
$graphNode = $response->getGraphNode();