Sql Query Like by Multiple columns

Code:

$this->userModel->like('CONCAT(last_name,first_name)',$_GET['search']);

Tnx, and if i need space between columns i can use - CONCAT(last_name," ",first_name) or need use something else?

Yes -> can refer this: https://www.mysqltutorial.org/sql-concat-in-mysql.aspx