Multiple Kriteria (Parameter) Code Igniter

public function CIT_SELECT($table,$opr='',$data='array',$ord='',$sort='asc',$limit=0,$start=0){
        $record = array();
        $this->db->select("*");
        $this->db->from($table);

        if ($opr != ''){
            switch($opr){
            case 'like':
                foreach($data as $key=>$val){
                    $this->db->like($key,$val);
                }
                break;
            case 'equal':
                foreach($data as $key=>$val){
                    $this->db->where($key,$val);
                }
            break;
            }
        }

        if (trim($ord)!=''){ $this->db->order_by($ord, $sort); }
        if (trim($limit)!='0'){ $this->db->limit($limit); }

        $Q = $this-> db-> get();
        if ($Q-> num_rows() > 0){
            foreach ($Q-> result_array() as $row){
                $record[] = $row;
            }
        }

        $Q-> free_result();
        return $record;
    }
$kriteria = array('param1'=>'kriteria1','param2'=>'kriteria2'......);
$sql = CIT_SELECT('namatable','equal',$kriteria)
// membalikan ke bentuk array
foreach ($sql as $r){
echo $r["namafield"];
}