getKelas.php

<?php
    include "../libs/class.php";

    $absensi = new Database;

    $kode = $_GET['kode_makul'];
    $hasil = $absensi->fetch("tbl_matakuliah mk, tbl_prodi p, tbl_kelas k","mk.kode_prodi = p.kode_prodi and k.kode_prodi = p.kode_prodi and mk.kode_makul = '$kode' order by mk.nama_matakuliah");
    echo "<option value='#'>- Pilih Kelas -</option>";
    foreach ($hasil as $result) {
        echo "<option value=\"".$result['kode_kelas']."\">".$result['nama_kelas']."</option>\n";
    }
?>