I have narrowed it down to this problem: I’m unable to get my access token from the server. The following code works from localhost only:
$app_token_url = "https://graph.facebook.com/oauth/access_token?"
. "client_id=" . $app_id
. "&client_secret=" . $app_secret
. "&grant_type=client_credentials";
$response = file_get_contents($app_token_url);
$params = null;
parse_str($response, $params);
echo("This app's access token is: " . $params['access_token']);
The openssl library is enabled.
