diff --git a/src/app/backend/controllers/CustomersController.php b/src/app/backend/controllers/CustomersController.php
index bcb42ed..b26f247 100644
--- a/src/app/backend/controllers/CustomersController.php
+++ b/src/app/backend/controllers/CustomersController.php
@@ -20,7 +20,7 @@ class CustomersController extends \Phalcon\Mvc\Controller
         $search_phone = $this->request->getPost('search_phone', 'string', NULL);
         $this->session->set('search_name', $search_name);
         $this->session->set('search_phone', $search_phone);
-        if (!empty($search_name) && !empty($search_phone)) {
+        if (!empty($search_name) && isset($search_phone)) {
             $data       = $this->models->getCustomers()->getDataByNameAndPhone($search_name, $search_phone);
             $total = 1;
         }
@@ -28,7 +28,7 @@ class CustomersController extends \Phalcon\Mvc\Controller
             $data       = $this->models->getCustomers()->getDataByName($search_name);
             $total = 1;
         }
-        elseif(!empty($search_phone)) {
+        elseif(isset($search_phone)) {
             $data       = $this->models->getCustomers()->getDataByPhone($search_phone);
             $total = 1;
         }
--
libgit2 0.21.4