tambaah

<?php
    include 'lib/library.php';

    if ($_SERVER['REQUEST_METHOD'] == 'POST') {
        $nis            = $_POST['nis'];
        $nama_lengkap   = $_POST['nama_lengkap'];
        $jenis_kelamin  = $_POST['jenis_kelamin'];
        $kelas          = $_POST['kelas'];
        $jurusan        = $_POST['jurusan'];

        $sql = "INSERT INTO siswa (nis, nama_lengkap, jenis_kelamin, kelas, jurusan) VALUES ('$nis', '$nama_lengkap', '$jenis_kelamin', '$kelas', '$jurusan')";
        $mysqli->query($sql) or die ($mysqli-> error);

        header('location: index.php');
    }

    include 'views/v_tambah.php';
?>