Insert timestamp in a table from controller

I need to insert timestamp in one field of one table of mysql. I need to do directly from controller. I use this to insert the other fields:

Yii::$app->db->createCommand()->insert('marker', [

	'field1' => $pathName,

	'field2' => $photofilename,




    'filed_time' => i need to put actual timestamp here


EDIT: Ok I got it: ‘filed_time’ => date(‘Y-m-d H:i:s’)