$cek_popup=mysqli_fetch_array(mysqli_query($link,"select popup_text from arf_setting2 where id='1'"));
?>
Informasi :
echo $cek_popup['popup_text']; //echo 'PPDB SMK St. Mikael Surakarta dibuka Tanggal 29 September 2020.'; ?>
echo $cek_popup['popup_text']; //echo 'PPDB SMK St. Mikael Surakarta dibuka Tanggal 29 September 2020.'; ?>

