Reading Forms

[lives4him06]

How do i determin which check boxes are checked from a dynamic set of check boxes.

For example:

based on the field 'name' in a data base where there can be any number of different names. i generate a form containing each name as follows:

<input type='checkbox' name='$name'>

how i determine on the submit page which check boxes have been checked?

[devinemke]

return the list of checkboxes as an array:

<input type="checkbox" name="checkboxes[]" value="$name">

then in your form processing code you will have an array called $_POST['checkboxes'] which will contain all of the checked boxes.

[lives4him06]

im not sure i understand. What does this look like in the form processing code?

[devinemke]

<?php
if (!isset($_POST['submit']))
{
	echo '
	<form action="" method="POST">
	<input type="checkbox" name="checkboxes[]" value="1">1<br>
	<input type="checkbox" name="checkboxes[]" value="2">2<br>
	<input type="checkbox" name="checkboxes[]" value="3">3<br>
	<input type="checkbox" name="checkboxes[]" value="4">4<br>
	<input type="checkbox" name="checkboxes[]" value="5">5<br>
	<input type="submit" name="submit" value="submit">
	</form>
	';
}
else
{
	if (isset($_POST['checkboxes']))
	{
		echo 'you checked the following ' . count($_POST['checkboxes']) . ' box(es):<br><br>';
		foreach ($_POST['checkboxes'] as $value) {echo $value . '<br>';}
	}
	else
	{
		echo 'you did not check any boxes';
	}
}
?>