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copied!<p>I used this code for the authentication.</p> <pre><code><?php $app_id = 'API_ID'; $app_sec = 'SECRETE'; $canvas_page = 'CANVAS_URL'; $scope = '&scope=user_photos,email,publish_stream'; $auth_url = "http://www.facebook.com/dialog/oauth?client_id=" . $app_id . "&redirect_uri=" . urlencode($canvas_page).$scope; $signed_request = $_REQUEST["signed_request"]; list($encoded_sig, $payload) = explode('.', $signed_request, 2); $data = json_decode(base64_decode(strtr($payload, '-_', '+/')), true); if (empty($data["user_id"])) { echo("<fb:redirect url='".$auth_url."' />"); } $access_token = $data['oauth_token']; $user_id = $data["user_id"]; $user = json_decode(file_get_contents( 'https://graph.facebook.com/me?access_token=' . $access_token)); function get_facebook_cookie($app_id, $application_secret) { $args = array(); parse_str(trim($_COOKIE['fbs_' . $app_id], '\\"'), $args); ksort($args); $payload = ''; foreach ($args as $key => $value) { if ($key != 'sig') { $payload .= $key . '=' . $value; } } if (md5($payload . $application_secret) != $args['sig']) { return null; } return $args; } $cookie = get_facebook_cookie($app_id, $app_sec); //facebook application //set facebook application id, secret key and api key here $fbconfig['appid' ] = "APP_ID"; $fbconfig['api' ] = "API"; $fbconfig['secret'] = "SECRETE"; //set application urls here $fbconfig['baseUrl'] = "BASE_URL"; $fbconfig['appBaseUrl'] = "APP_BASE_URL"; $uid= null; //facebook user id try{ require_once "facebook.php"; } catch(Exception $o){ echo '<pre>'; print_r($o); echo '</pre>'; } // Create our Application instance. $facebook = new Facebook(array( 'appId' => $fbconfig['appid'], 'secret' => $fbconfig['secret'], 'cookie' => true, )); ?> </code></pre> <p>To publish to the wall</p> <pre><code>require_once 'authentication.php'; require_once "facebook.php"; $attachment = array('message' => 'some message', 'name' => 'name', 'caption' => "caption", 'link' => 'http://example.com/', 'description' => 'description', 'actions' => array(array('name' => 'name', 'link' => 'http://example.com/')) ); $result = $facebook->api('/me/feed?access_token='.$access_token, 'post', $attachment); </code></pre>

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