Re: checkbox unchecked

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At 12:36 PM -0600 12/2/07, Larry Garfield wrote:
First of all, using "y" and "n" for boolean values (such as a checkbox) is
very sloppy.  "n" is boolean True.  A boolean value should evaluate correctly
in a boolean context. For that, you should use 1 and 0 for your values.
What I usually do is this:

<input type="hidden" name="foo" value="0" />
<input type="checkbox" name="foo" value="1" <?php echo $checked; ?> />

Then when it gets submitted, foo will get the value of the form element that
was submitted last that has a value.  That is, if the checkbox is checked
then foo will be 1, otherwise it will be 0.  That gives you a nice, clean
boolean value you can rely on being present (mostly <g>).

Larry:

Not that you said otherwise, but if the programmer does not set the value for a checkbox, html will provide values -- that may lead to confusion for newer programmers.

See here:

http://webbytedd.com/bbbb/checkbox/

If you will note, without specifically setting the value, html will return "on".

Also, I'm sure it's an oversight, but your code above should be:

<?php if ($foo) echo('checked'); ?>

Cheers,

tedd

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