Вам нужны разрешения publish_stream,manage_pages
. Код выглядит примерно так:
<?php
// This code is just a snippet of the example.php script
// from the PHP-SDK <https://github.com/facebook/facebook-php-sdk/blob/master/examples/example.php>
require '../src/facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'app_id',
'secret' => 'app_secret',
));
// Get User ID
$user = $facebook->getUser();
if ($user) {
try {
$page_id = 'page_id';
$page_info = $facebook->api("/$page_id?fields=access_token");
if( !empty($page_info['access_token']) ) {
$args = array(
'access_token' => $page_info['access_token'],
'message' => "I'm a Page!"
);
$post_id = $facebook->api("/$page_id/feed","post",$args);
} else {
$permissions = $facebook->api("/me/permissions");
if( !array_key_exists('publish_stream', $permissions['data'][0]) ||
!array_key_exists('manage_pages', $permissions['data'][0])) {
// We don't have one of the permissions
// Alert the admin or ask for the permission!
header( "Location: " . $facebook->getLoginUrl(array("scope" => "publish_stream, manage_pages")) );
}
}
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl(array('scope'=>'manage_pages,publish_stream'));
}
// ... rest of your code
?>
Я написал подробное руководство по этому вопросу: Как: публиковать на странице Facebook как страницу, а не как администратор с помощью PHP-SDK