$_GET still exist after Header("Location...

sebana

hi all! i've a weird problem..

it appears that my $_GET variables still exists after a header("location redirect.. here's the code..

function go_home() {
	$url = BASEURL; // i defined based URL to be http://www.domain.com/u.php
	session_write_close();
	header("Location: ".$url);
	exit;
}

function closestuff($sid) {
	// do mysql query here before redirecting to a plain /u.php address
	go_home();
}

if ($_GET['action'] == "closestuff") {
	closestuff($_GET['sid']);
}

i first check when action == closestuff, i perform some mysql functions, and redirect to a blank u.php. However, it appears that when it arrives at u.php, the action == closestuff is called again, and the closestuff() function is ran twice before it stops.

i've never seen this before, and it's really puzzling me! anybody has any idea? any help is appreciated! thanks!

Krik

I am guessing that value of $_GET['action'] is still set when the page loads try changing it at the end of your "if". You could also use unset() to get rid if it as well.

Also I am guessing there is some code before the segment you posted. One problem may be if somewhere berfore this segement of code is run there is some code setting the $_GET['action'] value.

sebana

hi Krik, thanks for your reply!

i checked if there were preceding codes that could be modifying $GET variables.. there were none. i unset the $GET['action'] variable in all my functions.. but it doesn't seem to work too.

the weird problem is that this phenomenon is intermitten.. it appears sometimes, at other times it doesnt... any idea?

edit: one more note, a similar $POST['action'] is not affected. it appears that only $GET is the one thats not disappearing..

sebana

any idea, anyone? =)

sebana

apparently this is a firefox problem. using safari on the mac does not give me problems of $_GET variables existing after redirects.

has anybody experienced this before?

Krik

Do a search on google for firfox bug or errors from $_GET

If nothing else use $_POST instead

Ashley_Sheridan

As far as I'm aware, the header() function doesn't replace the current location, it just adds over the top. I had a similar problem before where I was calling header() after some output had already been sent to the browser, and it ended up with one full HTML page added to the top bit of another.

Krik

Just looked up the header information on php.net. It does say "that header() must be called before any actual output is sent". So while code that generate varibles can run before it no HTML can be output before the header is executed.

It looks like you have some code (not shown to us) that is running before you call the go_home() function if it is outputing any HTML it may be the cause of the probelm.