zulnurdiana.php

     <?php
    
        if($_SERVER['REQUEST_METHOD'] == "POST"){
            if(isset($_POST['submit'])){
                $hari = $_POST['jumlah'];
                $codeBK = $_POST['namaBK'];

                if($codeBK == "algoritma"){
                    $nama = "Algoritma & Pemrograman";
                    $harga = 150000;
                }else if($codeBK == "php"){
                    $nama = "Pemrograman PHP";
                    $harga = 90000;
                }else if($codeBK == "java"){
                    $nama = "Pemrograman Java";
                    $harga = 175000;
                }
                else if($codeBK == "si"){
                    $nama = "Sistem Informasi";
                    $harga = 80000;
                } else {
                    $nama = "Aljabar Linear";
                    $harga = 50000;
                }

                function total($a,$b){
                    $hasil = floatval($a) * floatval($b);
                    return $hasil;
                }
            }
        }
    
    ?>