login跳转手机绑定页跳转优化

@@ -227,8 +227,7 @@ class LoginController extends AbstractAction
         }
 
         //判定是否需要绑定手机号
-        $isBind = $result['data']['is_bind'];
-        if ($isBind == 'N') {
+        if (isset($result['data']['is_bind']) && $result['data']['is_bind'] == 'N') {
             $this->go(Helpers::url('/passport/bind/index', array('openId' => $access['openid'], 'sourceType' => 'qq', 'nickname' => $partnerInfo['nickname'])));
         }
 
@@ -264,8 +263,7 @@ class LoginController extends AbstractAction
             $result = LoginData::signinByOpenID($partnerInfo['screen_name'], $access['uid'], 'sina');
         }
         //判定是否需要绑定手机号
-        $isBind = $result['data']['is_bind'];
-        if ($isBind == 'N') {
+        if (isset($result['data']['is_bind']) && $result['data']['is_bind'] == 'N') {
             $this->go(Helpers::url('/passport/bind/index', array('openId' => $access['uid'], 'sourceType' => 'sina', 'nickname' => $partnerInfo['screen_name'])));
         }