Problems with the checkbox?

Question

PHP

Hello! How to make a condition:

if (!empty ($row[email5])) {

    echo "<table width=100% height=300 bgcolor=red><tr><td>Привет!</td></tr></table>";
  }

for checkbox
here is update

<?php
require 'connect.php';
$id=$_REQUEST['id'];
$email5=trim($_REQUEST['email5']);
$name_order=trim($_REQUEST['name_order']);
$email_order=trim($_REQUEST['email_order']);
$tel_order=trim($_REQUEST['tel_order']);
$mes_order=trim($_REQUEST['mes_order']);

$update_sql = "UPDATE ordersait SET email5='$email5', name_order='$name_order', email_order='$email_order', tel_order='$tel_order', mes_order='$mes_order' WHERE id='$id'";
mysql_query($update_sql) or die("Ошибка вставки" . mysql_error());
echo '<p>Запись успешно обновлена!</p>';
?>

Please do not suggest other options
, nothing appears for me, everything is fine for text, how to do it for the checkbox?
thanks in advance

Answer 1

Checkbox - you either have it or you don't. It is not visible in your code, so I will give an example:
If it is selected - then:
And if not:
If you just need to check whether it is selected - issetenough.
PS From now on I will demolish both duplicates, ask one question ONCE.
PPS Nobody owes you anything; give hints - study, understand; if you want to be done for you - order on freelance or in other places.

Answer 2

You have already asked a question, you have all answered there!!!