checkbox arrays

[Anon]

Hi,

I got some code that checks to see if a checkbox has been checked - the form itself is built up dynamically.

It works fine but if the user presses 'submit' without checking a box then it knackers up the foreach statement (with a Warning: Invalid argument supplied for foreach() ) because the checkbox array doesn't become an array until there's at least one box checked (or so my experimenting seems to indicate).

I could place an '@' in front of foreach but that seems a bit scruffy.

Does anyone have a better suggestion?

Thanks in advance

Chris

[Anon]

<?
if (isset ($checkbox_array)) {

...validation code here...

}
?>

checkboxes and radios (unlike other form elements) are not sent thru $POST nor $GET when unchecked. You cannot evaluate true/false on them like text input, you must evaluate set/unset.

[Anon]

ah,

Thanks a lot. I thought it was a bit odd but it's not the sort of thing they tell you in the books - well not in the four I've been looking at anyway 🙂