Cara hilangin warning diatas bagaimana ya..? Tolong bantu saya
Berikut script PHP nya

<?php

include "Koneksi.php";

$tampil_nilai= "select*from data-kelulusan";

$hasil= mysql_query ($tampil_nilai);

$no= 1;

while ($row=mysql_fetch_array($hasil))

 {

 echo " <tr><td align=center> $no </td> ";

 echo " <td align=center> $row[nisn] </td> ";

 echo " <td align=center> $row[nilai] </td> ";

 echo " <td align=center> $row[keterangan] </td> ";

 echo " <td align=center> <a >Edit</a> | <a >Delete</a></td></tr> ";

 $no++;

 }

?>