Facebook API 2.8 / PHP / #Mention on Post - php

Question

I have the following script and would like to mention for ex. another page, which is involved in the post. I tried severall things, but can´ get it work. Isn´t it possible?
Here is my script:
header("Content-Type: text/html; charset=utf-8");
define('FACEBOOK_SDK_V4_SRC_DIR', __DIR__.'/src/Facebook/');
require_once(__DIR__.'/src/Facebook/autoload.php');
$fb = new Facebook\Facebook([
'app_id' => ‚1*************‘,
'app_secret' => ‚*e************,
'default_graph_version' => 'v2.2',
]);
$params["message"] = "Here is the magic - Thanks for your support, #[pageid]";
$params["link"] = "";
$params["picture"] = "";
$params["description"] = ";;
$pageAccessToken ='**************************';
try {
$response = $fb->post('/me/feed', $params, $pageAccessToken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
echo 'Graph returned an error: '.$e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
echo 'Facebook SDK returned an error: '.$e->getMessage();
exit;
}
$graphNode = $response->getGraphNode();
I tried, using #[pageid] and #[page-id:page-name], but both is not working.
Would be great to get any help.

Answer 1

From my experience, I will say error from facebook is always different based on configuration of your app, page etc. So it is difficult to say without seeing the exact error message. Just change your code a little bit to see error message is details:
try {
$response = $fb->post('/me/feed', $params, $pageAccessToken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
echo 'Graph returned an error: '.$e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
var_dump($e);
exit;
}
I am sure, you will get error details which will guide you to solve your problem.