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Posted by Jochem Maas on 06/16/38 11:33
Steve Edberg wrote:
> Only problem with intval() is that it returns 0 (a valid value) on
I knew that. :-)
> failure, so we need to check for 0 first. Adding more secure checks
do we? given that FALSE casts to 0.
> would make this more than just a one-liner, eg;
>
> $_CLEAN['x'] = false;
> if (isset($_POST['x'])) {
> if (0 == 1*$_POST['x']) {
I find the 1*_POST['x'] line a bit odd. why do you bother with the '1*' ?
> $_CLEAN['x'] = 0;
> } else {
> $x = intval($_POST['x']);
> if ($x > 0 && $x == 1*$_POST['x']) {
this is wrong ... if $_POST['x'] is '5.5' this won't fly
but is valid according to the OP.
> $_CLEAN['x'] = $x;
> }
> }
> }
>
> Reducing to a two-liner, if you *really* want:
>
> $x = intval(@$_POST['x']);
> $_CLEAN['x'] = (isset($_POST['x']) ? ((0 == 1*$_POST['x']) ? 0 : (($x >
> 0 && $x == 1*$_POST['x']) ? $x : false)) : false);
>
> (all untested)
>
> That *should* return false unless all your conditions are set, in which
> case it will return your cardinal number (non-negative integer).
>
> Disclaimer: Currently operating on caffeine deficit; it's possible I'm
> answering a question no one asked.
now that is funny :-)
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