code not working in NS 4.7 ???

sijis

I'm using this function (checkUID) to add a querysting to a URL for a shopping cart we are using at work.
For some odd reason, when i use Netscape 4.7 i can't get to Page2.php of the shopping cart. All it does it just redirect to the same page (Page1.php). The function works fine in any other browser (I haven't checked lynx yet though).

Page1.php

intro stuff
link to page2.php
<a href="Page2.php">Go Shopping!</a>

Page2.php

give UID if not present in URL
shopping cart code
here's how to code looks at top of this page
<?php
checkUID($UID);
......
?>

now here's the checkUID function.

function checkUID($UID){
	// global $UID;
	global $dbServerConn;
	if ($UID != "") {
		$result = mysql_query("SELECT * FROM Users WHERE User='$UID'",$dbServerConn);
		$num=mysql_num_rows($result);
		if ($num == "0") {
			$UID=md5(uniqid($REMOTE_ADDR));
			$date=date("z");
			mysql_query("INSERT INTO Users VALUES ('$UID','$date')",$dbServerConn);
			Header("Location: $PHP_SELF?UID=$UID");
		}
	}

if ($UID == "") {
	$UID=md5(uniqid($REMOTE_ADDR));
	$date=date("z");
	mysql_query("INSERT INTO Users VALUES ('$UID','$date')",$dbServerConn);
	Header("Location: $PHP_SELF?UID=$UID");
}
}

Thanks.

planetsim

Im not sure on which version but There is a Security whole in NS. This maybe why its affecting your script. If you are using SSL then its diffiantely why.

sijis

no im not using a secure server because we don't process any credit cards and stuff. all or our shopping cart does it email us the 'items' they've ordered and they send us cash, check or money order...
either way...
I know that php is server-side scripting and i was shocked to see that code not work in a particular browser. It's unbelievable!

rrijnders

In the checkUID function, GLOBALize $PHP_SELF.

sijis

I didn't globalize $PHP_SELF instead i did the 'right' way.
$_SERVER['PHP_SELF']
that seemed to fix the problem in the header(); statements inside my checkUID() function.

I also changed to call to the function on the top of my pages.
checkUID($_REQUEST['UID']);

Thanks again for the tip.