How to prepare a model to return json_encode data in Codeigniter framework

Here we are fetching data of the projects table and showing returning it in json format. public function projectData() { $result = array(); $data = $this->db->get_where(“projects”)->result(); foreach ($data as $row) { $result[] = array(“myid” => $row->id, “project_name” => $row->project_name, “description”->$row->description); } return json_encode($result); }