Warning: Cannot modify header information - headers already sent - Mambo

keymaster · June 22nd, 2005, 01:08

Hi,

I was running 4.5.2, and everything was fine.

Suddenly yesterday, without any changes made by me, the warnings (Below) started coming out above the header of my home page, pushing everything down.

Also, my admin panel no longer lets me in. I see the adress bar change from administrator/index.php to index2.php then back to index.php, and I am back to the admin log-in screen.

On the bottom of the browser window I see some attempt to go to www.expdialer.com but nothing happens.

Can anyone help with advice?

Here are the warnings:
----------------------

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 302

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 711

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 194

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 195

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 196

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 197

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 198

deep_fire · June 22nd, 2005, 01:47

if you use include or require in your page. don't use similar header in current page and included page. This is important

header must be top of the codes. Don't use headers bottom of html codes.

passenger57 · June 26th, 2005, 21:48

I have the same problem, could you elaborate on your response? I had this site up for a year and all the sudden I get these "Warning: Cannot modify header information - headers already sent by" messages above my site. I looked everywhere for an answer but no luck

mamboguy.com · June 26th, 2005, 21:53

Check to see that there are not any spaces at the end of those files you may have tried to edit.

kenmcd · June 26th, 2005, 22:07

The "headers already sent" error is usually caused by having white space before or after the opening and closing PHP tags (<?php . . . ?>).

Have you recently edited any files?

passenger57 · June 27th, 2005, 00:06

Which file should I look at? I havent touched my site in several months.
Here is the errors I get on the top of every page:

Reputation: passenger57 is on a distinguished road
Join Date: Apr 2004

Default Warning: Cannot modify header information ERROR?
Hi there. I had a mambo site up for over a year, and now all the sudden I get these messages on the header of every page:

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 143

Warning: Cannot modify header information - headers already sent by (output started at /home/rmysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 448

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 167

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 168

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 169

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 170

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 171

thede · June 27th, 2005, 03:39

Read your error message ;-)

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 143

Centurion · July 15th, 2005, 21:19

Ok, just in case you didn't get it.......(it took me 20 minutes to figure it out) he means, as far as I can tell, to open the config.php file (I did it in Dreamweaver) and look VERY carefully at the end of the file. They ain't kiddin' about NO BLANK LINES AFTER THE CLOSING TAG. Jeez, it took me 20 minutes to realize that the ONE blank line after the closing tag was causing al of my problems. They're giving us sneaky answers in order to make us use our noggins'.

djmikey · July 18th, 2005, 23:57

ur site was hacked, see here

http://64.233.187.104/search?q=cache...ient=firefox-a

highlight to see the text

dlgserver · August 6th, 2005, 07:56

Quote:

Originally Posted by kenmcd

The "headers already sent" error is usually caused by having white space before or after the opening and closing PHP tags (<?php . . . ?>).

Have you recently edited any files?

What you said is exact! Really nice advice! Thanks a lot.

brijix · May 22nd, 2006, 22:25

$mosConfig_locale_debug = 0;
$mosConfig_locale_use_gettext = 0;

add these two lines in configuration.php

And smile,stupid bug.Actually wanted this not bug by header file space charecter

brijix · May 22nd, 2006, 22:40

2 lines in configuration.php
$mosConfig_locale_debug = 0;
$mosConfig_locale_use_gettext = 0;

fixes it all.

Skaurus · June 17th, 2006, 10:50

In my case it was because in my text editor (PSPad) by default option "Ident bytes in UTF-8 encoding" set to ON.
If all pages with errors begin with string like ">>п>i", then it the same case.

mavrike · June 27th, 2006, 12:07

If you have PUT ANY echo"**********" statements inside your php file remove all of them , and everything will be fine.!!!

GOODLUCK,
MAVRIKE.

swatantra · July 29th, 2006, 04:06

Hi
I have designed a php site which working fine in my local windows system.
but when i uploaded my site it not working properly, it is giving warning like

Cannot modify header information - headers already sent by :

Please help me
code as follows

<?php
session_start(); //clear session
if (isset($_SESSION["gUserid"]))
{
$_SESSION["gUserid"]=0;
$_SESSION["gUserName"]="";

}
elseif (isset($_SESSION["gAdminid"]))
{
$_SESSION["gAdminid"]=0;
$_SESSION["gAdminlogin"]="";
}
session_destroy();
header("location:index.php?logout=1");
?>

Swatantra

Quote:

Originally Posted by keymaster

Hi,

I was running 4.5.2, and everything was fine.

Suddenly yesterday, without any changes made by me, the warnings (Below) started coming out above the header of my home page, pushing everything down.

Also, my admin panel no longer lets me in. I see the adress bar change from administrator/index.php to index2.php then back to index.php, and I am back to the admin log-in screen.

On the bottom of the browser window I see some attempt to go to www.expdialer.com but nothing happens.

Can anyone help with advice?

Here are the warnings:
----------------------

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 302

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 711

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 194

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 195

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 196

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 197

Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 198

mel_akey · July 30th, 2006, 11:14

Quote:

Originally Posted by keymaster

Hi,

I was running 4.5.2, and everything was fine.

Suddenly yesterday, without any changes made by me, the warnings (Below) started coming out above the header of my home page, pushing everything down.

Also, my admin panel no longer lets me in.

This post is alittle scary to me... are these kind of errors typical? or do they happen as you learn the system? Suddenly warinings pop up on your website? That could potentially make visitors bounce right off your site!

I guess I'm just looking for some reasurance as I am just learning how to use mambo!

inagmamboAko · July 30th, 2006, 12:41

Scary indeed if you were using the Old Versions. Even with the new versions with patch and using some 3rd party components which lately the culprit of some attacks .

TracyZ · July 31st, 2006, 14:20

KeyMaster,

Any suspicious component to try to connect to that dialer site ?

It is pretty scary...

Developer · January 31st, 2007, 16:47

I am having the same problem as others do. I get this message,

Cannot modify header information - headers already sent by,

Whenever I try to redirect to another webpage Like header('Location: http:www.fragrancedepot.net');

Please, Please help. I did everything everyone suggested in this
thread but nothing seem to work.

Any help will be appreciated. Thanks guys you are the greatest.

Developer · January 31st, 2007, 16:49

Also, I don't see this problem with other hosting servers. What can i do?

June 22nd, 2005, 01:08	#1
keymaster Join Date: Jan 2005 Posts: 39	Warning: Cannot modify header information - headers already sent Hi, I was running 4.5.2, and everything was fine. Suddenly yesterday, without any changes made by me, the warnings (Below) started coming out above the header of my home page, pushing everything down. Also, my admin panel no longer lets me in. I see the adress bar change from administrator/index.php to index2.php then back to index.php, and I am back to the admin log-in screen. On the bottom of the browser window I see some attempt to go to www.expdialer.com but nothing happens. Can anyone help with advice? Here are the warnings: ---------------------- Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 302 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/includes/mambo.php on line 711 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 194 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 195 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 196 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 197 Warning: Cannot modify header information - headers already sent by (output started at /home/myaccount/public_html/globals.php:42) in /home/myaccount/public_html/index.php on line 198

June 22nd, 2005, 01:47	#2
deep_fire Join Date: May 2005 Posts: 11	if you use include or require in your page. don't use similar header in current page and included page. This is important header must be top of the codes. Don't use headers bottom of html codes. __________________ www.thecoders.net intelligence inside

June 26th, 2005, 21:48	#3
passenger57 Join Date: Feb 2004 Posts: 174	me too I have the same problem, could you elaborate on your response? I had this site up for a year and all the sudden I get these "Warning: Cannot modify header information - headers already sent by" messages above my site. I looked everywhere for an answer but no luck

June 26th, 2005, 21:53	#4
mamboguy.com Join Date: Nov 2003 Location: Australia Posts: 2,931	Check to see that there are not any spaces at the end of those files you may have tried to edit. __________________ Brad Baker www.rochen.com - Multiple Domain, Reseller and Dedicated Hosting Solutions. www.joomlatutorials.com - Joomla Tutorials to get you started.

July 15th, 2005, 21:19	#8
Centurion Join Date: Jul 2005 Posts: 2	Sneaky people Ok, just in case you didn't get it.......(it took me 20 minutes to figure it out) he means, as far as I can tell, to open the config.php file (I did it in Dreamweaver) and look VERY carefully at the end of the file. They ain't kiddin' about NO BLANK LINES AFTER THE CLOSING TAG. Jeez, it took me 20 minutes to realize that the ONE blank line after the closing tag was causing al of my problems. They're giving us sneaky answers in order to make us use our noggins'.

June 26th, 2005, 22:07	#5
kenmcd Join Date: Apr 2005 Location: California Posts: 726	The "headers already sent" error is usually caused by having white space before or after the opening and closing PHP tags (<?php . . . ?>). Have you recently edited any files?

June 27th, 2005, 00:06	#6
passenger57 Join Date: Feb 2004 Posts: 174	Which file should I look at? I havent touched my site in several months. Here is the errors I get on the top of every page: Reputation: passenger57 is on a distinguished road Join Date: Apr 2004 Default Warning: Cannot modify header information ERROR? Hi there. I had a mambo site up for over a year, and now all the sudden I get these messages on the header of every page: Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 143 Warning: Cannot modify header information - headers already sent by (output started at /home/rmysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 448 Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 167 Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 168 Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 169 Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 170 Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/index.php on line 171

June 27th, 2005, 03:39	#7
thede Join Date: Dec 2004 Posts: 2,572	Read your error message ;-) Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/version.php:23) in /home/mysite/public_html/classes/mambo.php on line 143

July 18th, 2005, 23:57	#9
djmikey Join Date: Jun 2005 Posts: 85	ur site was hacked, see here http://64.233.187.104/search?q=cache...ient=firefox-a highlight to see the text

May 22nd, 2006, 22:25	#11
brijix Join Date: May 2006 Posts: 3	$mosConfig_locale_debug = 0; $mosConfig_locale_use_gettext = 0; add these two lines in configuration.php And smile,stupid bug.Actually wanted this not bug by header file space charecter

May 22nd, 2006, 22:40	#12
brijix Join Date: May 2006 Posts: 3	2 lines in configuration.php $mosConfig_locale_debug = 0; $mosConfig_locale_use_gettext = 0; fixes it all.

June 17th, 2006, 10:50	#13
Skaurus Join Date: Jun 2006 Posts: 1	In my case it was because in my text editor (PSPad) by default option "Ident bytes in UTF-8 encoding" set to ON. If all pages with errors begin with string like ">>п>i", then it the same case.

June 27th, 2006, 12:07	#14
mavrike Join Date: Jun 2006 Posts: 1	A common problem, specially occurs when you do testing stuff If you have PUT ANY echo"**********" statements inside your php file remove all of them , and everything will be fine.!!! GOODLUCK, MAVRIKE.

July 30th, 2006, 12:41	#17
inagmamboAko Join Date: Jan 2006 Location: NY, USA Posts: 1,289	Scary indeed if you were using the Old Versions. Even with the new versions with patch and using some 3rd party components which lately the culprit of some attacks .

July 31st, 2006, 14:20	#18
TracyZ Join Date: Jul 2006 Location: Miami Posts: 5	Warning: Cannot modify header information - headers already sent KeyMaster, Any suspicious component to try to connect to that dialer site ? It is pretty scary... __________________ ----------------- WireFan.Com Advanced Social Bookmarking Real Estate News Last edited by TracyZ : July 31st, 2006 at 14:30.

January 31st, 2007, 16:47	#19
Developer Join Date: Jan 2007 Posts: 2	Please, Help meeeee I am having the same problem as others do. I get this message, Cannot modify header information - headers already sent by, Whenever I try to redirect to another webpage Like header('Location: http:www.fragrancedepot.net'); Please, Please help. I did everything everyone suggested in this thread but nothing seem to work. Any help will be appreciated. Thanks guys you are the greatest.

January 31st, 2007, 16:49	#20
Developer Join Date: Jan 2007 Posts: 2	Also, I don't see this problem with other hosting servers. What can i do? __________________ Thank God its Friday :)http://www.fragrancedepot.net http://www.blazing-info.com

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