How to select checkbox in database mysqli table in PHP - php

Question

**How to select checkbox in database mysqli
what should i write in checkbox value
please kindly help
i also implode function which convert array to string
did not find values for checkbox values to print. .....
Also check the output on PICTURE...
**
OUTPUT PIC
<?php
while($fetch=mysqli_fetch_array($select))
{
?>
<tr>
<td><?php echo $fetch["tableno"]?></td>
<td><?php echo $fetch["customerid"]?></td>
<td><?php echo $fetch["item"]?></td>
<td><?php echo $fetch["money"]?></td>
<td><button>Delete</button></td>
<td><a href="update.php?tableno=<?php echo $fetch["tableno"]; ?>"/><button>Update</button></td>
<td><form method="POST">
<input type="checkbox" name="chk[]" value="???">
<input type="submit" name="sub1" value="Button for Checkbox">
</td> </form>
</tr>
<?php
}?>
</table>
<p style="font-size:30px">The Customer has TO Selected these Items from Menu List
and therefore submitted to<br> Kitchener to Make the Food and
then waiter will serve the Food to Customer.</p>
</body>
</html>
<?php
if(isset($_POST['sub1']))
{
$chk=implode(',', $_POST['chk']);
echo "<br>Customer has selected the following checkbox Item to be Prepared and Eat the Food:<br/>";
echo "<br/>".$chk."<br><br/><br/><br/><br/>";
}
?>

Answer 1

Try this:
In you form, method to insert multiple checkboxes
<form method="POST" action="test2.php">
<input type="checkbox" name="chk[]" value="InputText1">InputText1<br>
<input type="checkbox" name="chk[]" value="InputText2">InputText2<br>
<input type="submit" name="sub1">
</form>
if(isset($_POST['sub1'])) // check the submitted form and print the values
{
echo "You selected the following checkbox:<br/>";
foreach ($_POST['chk'] as $value) {
echo $value."<br>";
}

Answer 2

One method is the value of a checkbox can be concatenated with all data and after submitting, check for selected check boxes with for each loop and print all the selected rows. Like below
<input type="checkbox" name="chk[]" value="<?php echo "<td>".$fetch["tableno"]."</td><td>".$fetch["customerid"]."</td><td>".$fetch["item"]."</td><td>".$fetch["money"]."</td>"; ?>">
And after posting use this :
if(isset($_POST['sub1'])) // check the submitted form and print the values
{
echo "Below Customers have placed orders:<br/>";
echo "<table>";
foreach ($_POST['chk'] as $value) {
echo "<tr>".$value."</tr>";
}
echo "</table>";
}