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PHP: How to post an uploaded photo to wall?
$post = $facebook->api('/me/feed', 'POST', array(...));

<?php
  $app_id = "APP_ID";
  $app_secret = "APP_SECRET";
  $post_login_url = "POST_AUTH_REDIRECT_URL";
  $photo_id = "PHOTO_ID";
  $wall_message = "MESSAGE_FOR_POST";
  $wall_link = "LINK_TO_POST";
  $user_id = "USER_ID";

  $code = $_REQUEST["code"];

  // Obtain the access_token with publish_stream permission
  if (!$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'];

    // POST to Graph API feed endpoint, which is the user's Wall
    $graph_url= "https://graph.facebook.com/" . $user_id . "/feed?"
      . "message=" . urlencode($wall_message)
      . "&link=" . urlencode($wall_link)
      . "&object_attachment=" . $photo_id
      . "&method=POST"
      . "&access_token=" .$access_token;

    echo '<html><body>';
    echo file_get_contents($graph_url);
    echo '</body></html>';
  }
?>

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