Notice: undefined variable: id in d:\xampp\htdocs\appel1\pusat\listjadwalpusat.php on line 71

echo "<input type=\"hidden\" name=\"id\" value=\"$id\">"; //line 71
echo "<input type=\"hidden\" name=\"kode_unit\" value=\"$kode_unit\">"; //line 72
echo "<input type=\"hidden\" name=\"nama\" value=\"$nama\">"; //line 73
echo "<input type=\"hidden\" name=\"fasilitator\" value=\"$fasilitator\">"; //line 74
echo "<input type=\"hidden\" name=\"status\" value=\"$status\">"; //line 75