PHP Forum

**tarse** · 11:12 AM

Hi all

could have sworn i was already a member here but i couldn't remember my username or password so had to sign up again, doh.

I'm currently getting this error message...

There is nothing above the header ("location") part in my code and ive checked in several editors and there is absolutly no white space any where, i just can't work out why this error won't get lost

This is the full PHP code from plug.php

Any help would be greatly appreciated, and go easy...i'm a PHP n00b

**simptech** · 03-25-2005, 11:52 AM

Is the code from plug.php being included by index.php after output has already been sent output to the browser?

Check around line 2 in index.php to see where the output began

**tarse** · 11:13 AM

Hi simptech

Checked the index and i can't see anything obvious? Maybe i just don't fully understand what counts as an output? lol

This is the index file.

**simptech** · 03-25-2005, 12:29 PM

everything before <? include "plug.php"; ?> is considerred output. you cannot set headers once ANY output is sent to the browser.

you could use output buffering to avoid this, or rewrite the code to set headers before any HTML or TEXT output (echo, print, etc)

**tarse** · 03-27-2005, 10:44 AM

Well, i can't work out how to stop it....i removed everything from the index page aside from the include code and i STILL get the error

Could you/anyone perhaps tell me more about using 'output buffering' to do this?

**amw_drizz** · 03-27-2005, 11:02 AM

try putting your php headers before your html headers on the index page ie

PHP Code:


			
<?php

include 'testpage.php'; // what ever you have your header error page

?>

<head><title>What your title of the page is</title></head> 

<?

// then continue with your script and that may or may not fix your problems with the headers. 

?>

try putting all of you php headers before the html headers are sent hope that helps

**SergioC** · 03-27-2005, 04:00 PM

The error is not in PLUG.PHP but in INDEX2.PHP, look at the bottom of your script and find out if there is a white space after the ?> or a line under it, if so, delete anything after the ">" and your problem will be gone.

Regards,
Sergio.

**tarse** · 03-27-2005, 06:47 PM

There is no white space in any of the files used in the script, i've checked them all in 3 different editors.

**SergioC** · 03-27-2005, 09:43 PM

Some times it could be because of the editor you used to write the file, try to write the index2.php using notepad and bein sure that you get rid of any white space at the end of the script and then save it as a text file but with the extension PHP.

I use NOTE TAB instead of notepad, it is more efficient.

Regards,
Sergio.

**simptech** · 06:49 PM

Nobody has said the error was in plug.php. Eversince the initial response, index.php has been the focus. Not to mention, what Sergio points out in his 1st reply would make no difference in the issue at hand.

**SergioC** · 03-29-2005, 05:43 PM

What about editing this line:

PHP Code:


			
<? include "plug.php"; ?>

to the following:

PHP Code:


			
<? include "plug.php";?>

You just have to delete the white space after ";" and before the "?>"

Please give it a try.

Regards,
Sergio.

**simptech** · 03-29-2005, 06:49 PM

Whitespace makes no difference inside of PHP tags. The output error was caused by HTML output that was started before sending a header()

**amw_drizz** · 03-29-2005, 08:24 PM

TRY Putting all of your PHP headers before the html headers and that will remove the problem. but you need to put them before html or you will get errors.

IE
Good

PHP Code:


			
<? include 'header.php';?>

<head><title>What ever it is and other header information in html</title></head>

<?

// Continue your php script

include 'plug.php';

Bad

PHP Code:


			
<head><title>What ever it is and other header information in html</title></head>

<?

include 'header.php';

include 'plug.php';

?>

You will get errors with the last one. saying cannot send headers, headers already sent

**simptech** · 03-30-2005, 10:32 AM

That would have still caused errors with the original code. plug.php was trying to set headers (look at tarse's first post). Therefore, ANY output before that script was included was have resulted in the same problem.

**tarse** · 11:13 AM

^ that worked thanks, but another problem has appeared cos of it.

As you can see it now automatically jumps to the error-page.html that says 'Error: Invalid usage'

In this part of the code i tried making /pboard/plug.php and /pboard/index.php the valid URL but neither work

**simptech** · 03-30-2005, 11:30 AM

Which browser are you using? Some do not send referrering page URLs

**tarse** · 03-30-2005, 11:46 AM

I use Internet Explorer, also tested it in Firefox and the same thing happens.

**simptech** · 03-30-2005, 11:57 AM

Correct me if I am wrong. Are you expecting http_referer to be index.php because plug.php is included by index.php?

**tarse** · 03-30-2005, 12:53 PM

That is correct, however i have tried a bunch of other valid URLs like i said and none of them seem to work.