Tambah Data PHP Mysql

1. input _siswa.php

 <form name="form1" method="POST" action="simpan_siswa.php">
  <table width="400" border="0" align="center" cellpadding="1" cellspacing="1"
    bordercolor="#00FF00" bgcolor="#33CC00">
    <tr bgcolor="#CCFFCC">
      <td height="50" colspan="2"><div align="center">INPUT DATA SISWA </div></td>
    </tr>
    <tr bgcolor="#FFFFFF">
      <td height="40">Nis </td>
      <td>:
      <input name="nis" type="text" id="nis"></td>
    </tr>
    <tr bgcolor="#FFFFFF">
      <td height="40">Nama </td>
      <td>:
      <input name="nama" type="text" id="nama"></td>
    </tr>

    <tr bgcolor="#FFFFFF">
      <td>&nbsp;</td>
      <td height="50"><input type="submit" name="Submit" value="Simpan"></td>
    </tr>
  </table>
</form>

2. Simpan_siswa.php

<?php

include ("koneksi.php");

        $nis=$_POST['nis'];

        $nama=$_POST['nama'];

        

$simpan="insert into siswa values('$nis','$nama')";

mysql_query($simpan);

 echo "data berhasil disimpan ";

 include ("tampil_siswa.php");

 echo "<br>";

 echo "<a href=input_siswa.php>back</a>";

?>