PHP Script problems in posting on the the wall of my facebook fan page and permanent value for $access_token [duplicate]

问题

Possible Duplicate:
PHP SCRIPT issue with passing the uploaded image to facebook->api function

I have this code and its working awsomely fine just and just only one problem i am not able to pass my uploaded image to facebook->api (whether its valid or not) and the following always echo echo 'Only jpg, png and gif image types are supported!'; i even remove the check on image type and try to get the image from $img = realpath($_FILES["pic"]["tmp_name"]); but $img gets nothing in it and uploads a by default empty image on facebook as my page Kindly check my following code and let me know what should is wrong with my code so i'll become able to upload images

 <?


require 'src/facebook.php';

$app_id = "364900470214655";
$app_secret = "xxxxxxxx";

$facebook = new Facebook(array(
 'appId' => $app_id,
 'secret' => $app_secret,
 'cookie' => true,
 'fileUpload' => true,
));

$user = $facebook->getUser();
//echo $user;

if(($facebook->getUser())==0)
{
 header("Location:{$facebook->getLoginUrl(array('req_perms' => 'user_status,publish_stream,user_photos,offline_access,manage_pages'))}");
 exit;
}
else {
$accounts_list = $facebook->api('/me/accounts');
echo "i am connected";
}
  $valid_files = array('image/jpeg', 'image/png', 'image/gif');


//to get the page access token to post as a page
foreach($accounts_list['data'] as $account){
      if($account['id'] == 194458563914948){      // my page id =123456789
        $access_token = $account['access_token'];
        echo "<p>Page Access Token: $access_token</p>";
        }
    }

//posting to the page wall

if (isset($_FILES) && !empty($_FILES))
{  
if( !in_array($_FILES['pic']['type'], $valid_files ) )
{
  echo 'Only jpg, png and gif image types are supported!';
 }
 else{
  #Upload photo here
  $img = realpath($_FILES["pic"]["tmp_name"]);
$attachment = array('message' => 'this is my message',
                'access_token'  => $access_token,
                'name' => 'This is my demo Facebook application!',
                'caption' => "Caption of the Post",
                'link' => 'example.org',
                'description' => 'this is a description',
                'picture' => '@' . $img,
                'actions' => array(array('name' => 'Get Search',
                                  'link' => 'http://www.google.com'))
                );
$status = $facebook->api('/194458563914948/feed', 'POST', $attachment);   // my page id =123456789
var_dump($status);
}
}
?>
<body>
 <!-- Form for uploading the photo -->
 <div class="main">
  <p>Select a photo to upload on Facebook Fan Page</p>
  <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">
  <p>Select the image: <input type="file" name="pic" /></p>
  <p><input class="post_but" type="submit" value="Upload to my album" /></p>
  </form>
 </div>
</body>

回答1:

Creating a New Album and Adding a Photo

This is the scenario where you upload a photo to the ALBUM_ID/photos Graph API endpoint. The user interface for this example allows the user to select a photo and add a caption before submitting the new photo.

Using PHP:

<?php

       $app_id = "YOUR_APP_ID";
       $app_secret = "YOUR_APP_SECRET";
       $post_login_url = "YOUR_POST-LOGIN_URL";
       $album_name = 'YOUR_ALBUM_NAME';
       $album_description = 'YOUR_ALBUM_DESCRIPTION';

       $code = $_REQUEST["code"];

       //Obtain the access_token with publish_stream permission 
       if(empty($code))
         {
           $dialog_url= "http://www.facebook.com/dialog/oauth?"
           . "client_id=" . $app_id 
           . "&redirect_uri=" . urlencode($post_login_url)
           . "&scope=publish_stream";
           echo("<script>top.location.href='" . $dialog_url . 
           "'</script>");
       } 
       else {
         $token_url= "https://graph.facebook.com/oauth/"
         . "access_token?"
         . "client_id=" .  $app_id 
         . "&redirect_uri=" . urlencode( $post_login_url)
         . "&client_secret=" . $app_secret
         . "&code=" . $code;
         $response = file_get_contents($token_url);
         $params = null;
         parse_str($response, $params);
         $access_token = $params['access_token'];

         // Create a new album
         $graph_url = "https://graph.facebook.com/me/albums?"
         . "access_token=". $access_token;

         $postdata = http_build_query(
         array(
          'name' => $album_name,
          'message' => $album_description
            )
          );
         $opts = array('http' =>
         array(
          'method'=> 'POST',
          'header'=>
            'Content-type: application/x-www-form-urlencoded',
          'content' => $postdata
          )
         );
         $context  = stream_context_create($opts);
         $result = json_decode(file_get_contents($graph_url, false, 
           $context));

         // Get the new album ID
         $album_id = $result->id;

         //Show photo upload form and post to the Graph URL
         $graph_url = "https://graph.facebook.com/". $album_id
           . "/photos?access_token=" . $access_token;
         echo '<html><body>';
         echo '<form enctype="multipart/form-data" action="'
         .$graph_url. ' "method="POST">';
         echo 'Adding photo to album: ' . $album_name .'<br/><br/>';
         echo 'Please choose a photo: ';
         echo '<input name="source" type="file"><br/><br/>';
         echo 'Say something about this photo: ';
         echo '<input name="message" type="text"
            value=""><br/><br/>';
         echo '<input type="submit" value="Upload" /><br/>';
         echo '</form>';
         echo '</body></html>';
      }
 ?>

来源：https://stackoverflow.com/questions/10141801/php-script-problems-in-posting-on-the-the-wall-of-my-facebook-fan-page-and-perma

标签

facebook

facebook-graph-api