<?php
//Komisi
if($data['pesanan'] === "1C-1810" and "1C-1609" and "1C-2415" and "1C-1814" ) {

$komisi = 60;

} elseif($data['pesanan'] === "5C-2314") {
$komisi = 75;
}elseif($data['pesanan'] === "1T-1609" and "1T-1811" and "1C-1111") {
$komisi = 20;
}

$jumlah_komisi = $komisi*$data['jumlah'];
?>