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Subject: Re: is_int/is_numeric possible bug
From: r.korving@xit.nl ("Ron Korving")

Just out of curiosity, to which versions does this apply?

Ron


"Gareth Ardron" <gareth@fission.org.uk> schreef in bericht 
news:438C7A4C.9090503@fission.org.uk...
> Hi.
>
> Think I've just stumbled upon a possible bug with is_int.
>
> if you've got the following code:
>
> <form action='1.php' method='post'>
> <input type='text' name='days'>
> <input type='submit' name='submit' value='submit'>
> </form>
> <?php
> if (!is_int($_REQUEST['days']) || $_REQUEST['days'] < 0) {
>        $_REQUEST['days'] = 10;
> }
> print "<br>days::".$_REQUEST['days'];
> ?>
>
> and somebody enters, say "jkhdsjh" into the form, is_int() returns 1, 
> thereby not setting the $_REQUEST['days'] variable to 10 - if I switch to 
> using is_numeric then everything works as it should. Obviously, this isn't 
> ideal as somebody could then enter 2.5 rather than the integers that I 
> want to be passed.
>
> Looking at the source, this is in ext/standard/type.c in the php_is_type() 
> function which seems to be messing up.
>
> Can anybody confirm this is:
> a) undesired behaviour and I'm not just being very "special" and
> b) that this is happening. I've tried on two boxes with 5.1.1[0] but it'd 
> help to get somebody else's opinion
>
> If it's a bug, I'll do a patch up later tonight - just want to get it 
> confirmed first.
>
> Cheers.
>
> -- 
> Gareth Ardron
>
> [0] both debian/linux boxes. One i386, one x86_64.