Website Design Forum

**DLGx** · 01-01-2007, 09:44 PM

On one of my computers there are no errors on http://www.zoodu.com/ but on the other there is

Warning: Cannot modify header information - headers already sent by (output started at /data/www/sites/www.zoodu.com/html/index.php:6) in /data/www/sites/www.zoodu.com/html/468by60H.php on line 12

printed out in the header.

When asking others to test some get the error, some don't, and I'm clueless.

**Chasby** · 01-01-2007, 09:51 PM

Well I don't have a clue why it would do that, but it doesn't do it for me. I am viewing it in Firefox.

EDIT: When I clicked around the site, after a few pages I started to recieve the error

.\

EDIT 2: I was just randomly reading around and your website said:

Quote:

Originally Posted by Zoodu

Step 1: Copy the code using ctrl+c or mouse right click and "copy".
Step 2: Login to your profile and click on "Edit Profile".
Step 3: Paste the copied code into the appropriate section, usually "About Me", using ctrl+p or mouse right click and paste.

I think you meant to type ctrl+v :P

**DLGx** · 01-01-2007, 10:03 PM

Amazing how many useless proof readers I've got....thanks

And it looks like this code works, at least I don't get errors on my other computer:

Code:

<?php
include("/var/www/sites/www.zoodu.com/html/geoip.inc");
$gi = geoip_open("/var/www/sites/www.zoodu.com/html/GeoIP.dat",GEOIP_STANDARD);
$country = geoip_country_code_by_addr($gi, $REMOTE_ADDR);
geoip_close($gi);
?>

while this code, which I need to run since the above one uses way more bandwidth and server resources, produces the error on random or something:

Code:

<?php
if (isset($_COOKIE["geo"])){
    $country = $_COOKIE['geo'];
}
else {
    include("/var/www/sites/www.zoodu.com/html/geoip.inc");
    $gi = geoip_open("/var/www/sites/www.zoodu.com/html/GeoIP.dat",GEOIP_STANDARD);
    $ip = $_SERVER["REMOTE_ADDR"];
    $country = geoip_country_code_by_addr($gi, $ip);
    geoip_close($gi);
    setcookie("geo", $country, time()+15552000, "/", ".zoodu.com", 0); //6 month cookie
}
?>

**Chasby** · 01-01-2007, 10:41 PM

No problem about finding the error. I kinda have a knack for it. I am 15 and my mom brought home some special invitation for her work clients that she had proof-read by 5 "proof readers", nobody seemed to notice how business was spelled busines on the front of the invitation.

As for fixing the header, good luck fixing it. I am the wrong person to ask about that :P

**Lucas3677** · 01-01-2007, 11:40 PM

Quote:

Originally Posted by DLGx

On one of my computers there are no errors on http://www.zoodu.com/ but on the other there is

Warning: Cannot modify header information - headers already sent by (output started at /data/www/sites/www.zoodu.com/html/index.php:6) in /data/www/sites/www.zoodu.com/html/468by60H.php on line 12

printed out in the header.

When asking others to test some get the error, some don't, and I'm clueless.

DLGx, the problem is that the file "/html/468by60H.php" is trying to send a header but content has already been sent to the browser. Headers must be sent before any actual content. I went to www.zoodu.com/html/468by60H.php and noticed that the file was non-existant so I am guessing that if you put an actual banner there, the problem will disappear as the missing page tries to redirect to the error page. Otherwise try output buffering.

If you want some help, give me a shout on MSN.

Edit: I just read your second post in this thread. The problem with the second script is that it's trying to set a cookie when HTML has already been sent.

**DLGx** · 01-02-2007, 05:27 AM

so the script has to be in or above the <head> tag?

**Lucas3677** · 01-02-2007, 01:03 PM

Not exactly. This is what the server sends to the browser:

Code:

SomeHeader: Some value
Cookie: asdf=werqwe; qwerqwe=wtiuhgsa
Otherstuff: asdfasdf
YetAnotherHeader: value

<html>
   <head>
     ...
   </body>
</html>

Notice how all the headers are grouped together. So once the HTML starts being outputted, no more headers can be sent (therefore no cookies or server redirects can be sent either).

Therefore, what you need to do is just make sure the geo-checker script runs at the very beginning of the PHP script, before any output is sent to the browser.

**DLGx** · 01-02-2007, 04:24 PM

Well basically that means it needs to run at the top of the file?

Which is much easier said than done with this website....

**Lucas3677** · 01-02-2007, 05:02 PM

Try replacing the setcookie() line with this code:

Code:

echo <<< JSC
<script>
var exdate = new Date();
exdate.setDate(exdate.getDate() + 30*6);
document.cookie = "geo={$country}; expires=" + exdate.toGMTString();
</script>
JSC;

The cookie will be set client-side that way.

**NavySeals91** · 01-02-2007, 09:16 PM

Nice design DLGx, I get no error now.

**Chasby** · 01-02-2007, 09:31 PM

Same here, no error.

**DLGx** · 01-03-2007, 06:13 AM

Yeah the javascript thing seems to have sorted it out Lucas, and thanks Navy.