| re: Unsetting session variables when a checkbox is set to unchecked
Pete wrote:[color=blue]
> The problem I have is that if the user unchecks a checkbox before
> finally moving to page three (which is perfectly okay for them to do if
> they wish) then I need to unset the session variable. It's not a
> problem if it goes from unchecked to checked as I can check for the
> value of the checkbox in page 3 and if it's set then I can set the
> corresponding session variable however as an unchecked checkbox is not
> sent through as part of the $_POST array then I obviously can't do a
> check for it. What I really need to do is alter the session variable as
> soon as they update the checkbox.[/color]
Instead of checking checkboxes within the $_POST array do that within
the $_SESSION array
<?php
foreach ($_SESSION['checkbox'] as $k=>$dummy) {
if (isset($_POST[$k])) $_SESSION['checkbox'][$k] = true;
else $_SESSION['checkbox'][$k] = false;
}
?>
Just remember to name your HTML checkboxes the same as your
$_SESSION['checkbox'] indexes
<?php // form output
$_SESSION['checkbox']['cb1'] = true;
echo '<input type="checkbox" name="cb1" checked>';
// ...
?>
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