[RESOLVED] cannot modify headers problem

shifty18

[Current project can be viewed at http://80.193.62.89/AmmoBox/index.php]

For my current project i had to change my system of differnt pages like index.php member/memberindex.php admin/adminindex.php i am having to do it so the url is like index.php?page=members/memberindex and I have never done it like this so have come accross a problem

I have a login page and this creates some sessions and then moves the user to memberindex and the url is index.php?page=members/memberindex&do=login (it was ?do=login but this didnt work and & does..i dont no if thats important)
and is simply like this

if ($level != "1") 
        { $auth = "yes"; }
        else { $auth = "admin"; }
        header("Location: index.php?page=members/memberindex.php");

but i get this error (line 58 is the line header("Lo...) line 5 is the session script bellow

Warning: Cannot modify header information - headers already sent by (output started at d:\program files\apache group\apache\htdocs\ammobox\index.php:58) in d:\program files\apache group\apache\htdocs\ammobox\members\memberindex.php on line 5

I also get the same error with just these and no other header being sent

<?php
session_start();
if (@$auth != "admin")
{
	header ("Location: index.php?page=memberlogin");
	exit();
}
?>

Can anyone advise on how I can get around this. Also but not essential to this post, if you see why my little script there wouldnt work, please tell me I am having problems with it, but its not the vital thing at min so dont worry too much

Thanks
Chris

mrhappiness

lease post lines 50 - 60 of file d:\program files\apache group\apache\htdocs\ammobox\index.php

shifty18

it does seam very odd but 50-60 are

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>AmmoBOX BETA V0.7</title>
<link href="other/main.css" rel="stylesheet" type="text/css" />
</head>

<body> 

<!-- Main Table -->
<table width="900px" cellpadding="0" cellspacing="0" align="center">

<!-- Top Border -->

mrhappiness

and that's no output?

shifty18

im confused 🙁

lemem try and breakthings down. I have index.php (http://80.193.62.89/AmmoBox/index.php) From there i can goto http://localhost/AmmoBox/index.php?page=admin/adminlogin and login, when I press submit for the form (the form being the page adminlogin.php which is called so it displays in the middle of the index page) it goes to http://localhost/AmmoBox/index.php?page=admin/adminindex but i get the error

gandotratushar

if u have outputted and thing to the page this header function will not work........remove all the echo or print command then try

shifty18

well in index.php?page=members/memberindex i removed the session snippet and it works fine, so its that that give the error and its teh header line..even if it doesnt run (and it wont if i am logged in like i am now)

gandotratushar

look header will work only if there is nothing sent for output what ever it is..even <html> might cause this error.

Weedpacket

You've already posted lines 50-60. They're full of output. You can't send anything else before you send your headers. Headers have to be sent first (that's why they're called "headers") because they tell the client what to do with whatever the content of the response is.

And there shouldn't be any content anyway in your situation. If you're redirecting the user to a different page, there's no point sending them any content for the current page.

Search the forums for "Cannot send header information" for more information.

shifty18

oh ok i see, so do you have any advice on how i can get round this problem

Edit: Sorry i just just after you did so i didnt read your post ill search that, thanks

Thanks
Chris

shifty18

ok thanks for that i looked around, stumbled on you in fact lol now i got

<?php
session_start();
header("Cache-control: private");// IE 6 fix 
if (@$auth != "admin")
{
echo "<script language=\"JavaScript\"> 
location.href = \"index.php?page=member/memberlogin&do=login\" 
</script>"; 
exit();
}

and it works good

Chears
Chris