kodekonsumen

function setKodeKonsumen($idorder, $idkonsumen){
        $getkode    = $this->db->query("select max(kdkonsumen) as kode from konsumen")->row_array();

        if($getkode['kode']){
            $alfa       = substr($getkode['kode'],0,1);
            $number     = (int) substr($getkode['kode'],1,4);

            if($number >= 9999){
                // ganti abjad
                $alfaarr    = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
                $key        = array_search($alfa, $alfaarr);
                echo $alfaarr[$key+1].'0001';
            }else{
                $number = $number + 1;
                if($number <= 9){
                    $number = "000".$number;
                }else if($number >= 10 && $number <= 99){
                    $number = "00".$number;
                }else if($number >= 100 && $number <= 999){
                    $number = "0".$number;
                }else if($number >= 10 && $number <= 99){
                    $number = $number;
                }
                echo $alfa.$number;
            }
        }else{
            echo "A0001";
        }
    }