Re: $_POST bug?

On Thursday 13 November 2003 00:59, Jake McHenry wrote: > > -----Original Message----- > > From: Jake McHenry [mailto:linux@nittanytravel.com] > > Sent: Thursday, November 13, 2003 12:53 AM > > To: php-general@lists.php.net > > Subject: [PHP] $_POST bug? > > > > > > I have 5 fields, all 1 character in length, numbers being > > entered. If zero's are entered in the boxes, and the form is > > submitted, the corresponding $_POST variables are empty? Is > > there a way around this, or am I doing something wrong? > > > > I guess I could just do, if (isset(... Blah.. Then if it's > > not set then manually set the variable name to 0... > > > > Has anyone else run across this? > > > > Thanks, > > > > Jake McHenry > > Nittany Travel MIS Coordinator > > http://www.nittanytravel.com > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > Just to test, I changed the input field length to 3, and every time I > tried it, single 0 does not create the $_POST variable. Double 0's > create it, along with any other numbers, it's only when a single 0 is > entered. Is this a bug or happening for a reason? > > > > Thanks, > > Jake McHenry > Nittany Travel MIS Coordinator > http://www.nittanytravel.com PHP uses the 0 as the flag for FALSE. And anything other then 0 is TRUE. If I understand the workings of PHP FALSE can also be interpreted as NULL. So PHP sees the post as saying the fields are NULL. I could be wrong on this but I think that's where the problem is. Whether the developers planned this or it's slipped through that cracks I have no idea. Did you checkout http://bugs.php.net to see if there's anything listed about it? -- "I have a photographic memory. I just forgot the film" --Unknown ============================= Ryan Thompson rthomp@sympatico.ca http://osgw.sourceforge.net