关于 php:Facebook graph API – URL 提供的无效 OAuthException: (#1500)

Fatal error: Uncaught OAuthException: (#1500) The url you supplied is invalid thrown    
in /home/a1395850/public_html/src/base_facebook.php on line 1254

<?php
 error_reporting(E_ALL); ini_set(‘display_errors’, ‘On’);
 require ‘src/facebook.php’;
 include ‘app_details.php’;
 $user = $facebook->getUser();
 if ($user) {
   try {
     $user_profile = $facebook->api(‘/me’);
   } catch (FacebookApiException $e) {
     error_log($e);
     $user = null;
   }
 }

 $permissions = $facebook->api("/me/permissions");
 if( array_key_exists(‘publish_stream’, $permissions[‘data’][0]) ) {
// Permission is granted!
// Do the related task
 $args = array(
‘message’   => ‘Hello from app’,
‘link’      => ‘laafo.uni.me’,
‘caption’   => ‘Facebook API Tutorials!’
 );
 $post_id = $facebook->api("/me/feed","post", $args);

 } else {
// We don’t have the permission
// Alert the user or ask for the permission!
header("Location:" . $facebook->getLoginUrl(array("scope" =>"publish_stream")) );
 }

 ?>