fix bug

api/application/controllers/Home.php

@@ -55,7 +55,8 @@ class Home extends Base_Controller {
     		'online_count' => 0,
     		'faulty_count' => 0
     	);
-        $data['logCount'] = $this->get_user_info('logCount');
+        $createTime = $this->get_user_info('createTime');
+        $data['logCount'] = empty($createTime) ? 0 : ceil((time() - strtotime($createTime))/(3600 * 24));
 
         $date = date('Y-m-d H:i:s',strtotime(date('Y-m-d 00:00:00',time())) - 6*3600);