Cara buat sweet alert di kode ini?

<!-- lockscreen credentials (contains the form) -->

    <form class="lockscreen-credentials" action="" method="POST" autocomplete="off" >

      <div class="input-group">

        <input type="input1" name="id" class="form-control" placeholder="Masukkan ID PPS" autofocus="" required>

        <div class="input-group-append">

          <button type="submit" name="submit" class="btn"><i class="fas fa-arrow-right text-muted"></i></button>

        </div>

      </div>

    </form>

    <!-- /.lockscreen credentials -->

</div>

<!-- proses absen PHP -->

<?php

if (null !== @$_POST['submit']) {

$id_pps = @$_POST['id'];

$query = "SELECT * FROM absen where id_pps='$id_pps' AND tanggal = '$tgl' AND bulan='$bln' AND tahun='$thn'";

$result=mysqli_query($koneksi,$query);

$data = mysqli_num_rows($result);

if($data == 1){

$tampil = '<center><h5>Anda dengan ID <font color="red">'.$id_pps.'</font> telah mengisi Presensi</h5></center>';

}elseif($data == 0){

$qry = "SELECT * FROM anggota where id_pps = '$id_pps' AND status_ngaji = '1'";

$cek = mysqli_query($koneksi,$qry);

$cari = mysqli_num_rows($cek);

if($cari == 0){

$tampil = '<center><h5>Anda Dengan ID <font color="red">'.$id_pps.'</font> tidak terdaftar sebagai anggota</h5></center>';

}elseif($cari == 1){

mysqli_query($koneksi, "INSERT INTO absen VALUES ('','$id_pps','$tgl','$bln','$thn','1')");

$sambil = "SELECT a.id, a.id_pps, COUNT(a.id_pps) AS hadir, a.tanggal, b.nama, b.domisili, b.kategori, b.majlis,

(SELECT COUNT(id_pps) AS alpa FROM alpa WHERE id_pps = '$id_pps' AND bulan='$bln' AND tahun='$thn') AS alpa FROM absen a, pembina b, anggota c WHERE a.id_pps = b.id_pps AND a.id_pps = c.id_pps

AND a.id_pps = '$idpps' AND a.bulan='$bln' AND a.tahun='$thn' ORDER BY id DESC LIMIT 1";

$ambil  = mysqli_query($koneksi, $sambil);

while ($data = mysqli_fetch_assoc($ambil)):

$filename = "../dist/images/".$data['id_pps'].".jpg";

if (file_exists($filename)) {

$file="../dist/images/".$data['id_pps'].".jpg";

} else {

$file="../dist/nophoto.jpg";

}

$bulan = date('M');

endwhile;

}

}

}

echo $tampil;

?>

<!-- akhir proses -->