On Wed, 19 Jul 2006 11:35:57 -0700, Mark Edwards mark@antsclimbtree.com wrote:

Scratch that, I'm getting lots of these errors even with the latest trunk:

[Wed Jul 19 11:28:07 2006] [error] [client 192.168.1.105] PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0

I've seen this error for weeks (months?) on my system; freebsd, apache2, php5, mysql 5 - but was told it was harmless, and assumed it'd be addressed. no I haven't checked if it's an entered bug - should have.

Sometimes they result in a blank message window, but generally I can go on browsing. I don't really get the pattern yet.

I haven't seen this in recent builds, even when the error shows up in the logs.

P

I'm reasonably sure this isn't a problem in my config files, as I have redone them many times with many different versions now.

Anyone have an idea what is causing this? As far as I can tell, its limited to apache2. I have an installation running 20060505 on an apache1 box, and it doesn't experience this. I also found one other post referencing this, and it was apache2.

This is on Ubuntu 6.06. Thanks!

On Jul 18, 2006, at 5:55 PM, Mark Edwards wrote:

...

I just wanted to mention that there seems to be something wrong with the roundcubemail-cvs-20060505 build currently available on the sourceforge site. The entire message list blanks out and the apache2 logs get the old

PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0

error message.

I have tried with a few fresh copies, same results. roundcubemail- cvs-20060413 works fine, as does today's trunk.

Incidentally, I got the trunk by using

wget -m https://svn.roundcube.net/trunk/

It seems to work fine. Is something totally bunk about that method?

-- Mark Edwards

-- Mark Edwards

-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

-- http://fak3r.com - you don't have to kick it

I have smtp logging enabled, as per the default. Still getting the messages. Why do you suspect that as the culprit?

On Wed, 19 Jul 2006 18:03:39 -0300, "Sergio A. Kessler" sergiokessler@gmail.com wrote:

enable logging in roundcube config...

On 7/19/06, phil phil@cryer.us wrote:

...

On Wed, 19 Jul 2006 11:35:57 -0700, Mark Edwards

mark@antsclimbtree.com wrote:

...

...

Scratch that, I'm getting lots of these errors even with the latest trunk:

[Wed Jul 19 11:28:07 2006] [error] [client 192.168.1.105] PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0

I see what you were getting at. The complaint that is logged is:

[19-Jul-2006 22:43:59] PHP Warning: Cannot modify header information

• headers already sent in /var/www/apache2-default/roundcube_svn/

program/include/rcube_shared.inc on line 121

However, that isn't getting generated each time apache2 complains,
which is pretty much on every action in roundcube. Here's an apache2
complaint:

[Thu Jul 20 11:41:56 2006] [error] [client 192.168.1.105] PHP
Warning: Cannot modify header information - headers already sent in
Unknown on line 0

Real informative. The relevant section in program/include/ rcube_shared.inc is:

118      // include meta tag with charset
119      if (!empty($this->charset))
120        {
121        header('Content-Type: text/html; charset='.$this- 

charset);

122        $__page_header = '<meta http-equiv="content-type"  

content="text/html; charset='.$this->charset.'" />'."\n"; 123 } 124

I don't know enough about what comes before this situation to
diagnose, frankly. I'm just putting it out there.

My theory is that the roundcube-logged complaints correspond to the
blanking of the window, and perhaps have something to do with caching
of different versions, because they seem to have gone away after
using one version for a little while. The copious apache2
complaints? I'll leave that to someone who has a clue about this code.

Thanks!

On Jul 20, 2006, at 6:31 AM, Sergio A. Kessler wrote:

look in the roundcube config.php, there is a logging directive there...

it helped me to spot various errors of this type...

On 7/20/06, mark mark@mail.antsclimbtree.com wrote:

...

I have smtp logging enabled, as per the default. Still getting
the messages. Why do you suspect that as the culprit?

On Wed, 19 Jul 2006 18:03:39 -0300, "Sergio A. Kessler"
sergiokessler@gmail.com wrote:

...

enable logging in roundcube config...

On 7/19/06, phil phil@cryer.us wrote:

...

On Wed, 19 Jul 2006 11:35:57 -0700, Mark Edwards

mark@antsclimbtree.com wrote:

...

...

Scratch that, I'm getting lots of these errors even with the

latest

...

...

...

trunk:

[Wed Jul 19 11:28:07 2006] [error] [client 192.168.1.105] PHP Warning: Cannot modify header information - headers already

sent in

...

...

...

Unknown on line 0

-- Mark Edwards

Thomas Mangin schrieb:

...

...

...

Scratch that, I'm getting lots of these errors even with the latest trunk:

[Wed Jul 19 11:28:07 2006] [error] [client 192.168.1.105] PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0

I've seen this error for weeks (months?) on my system; freebsd, apache2, php5, mysql 5 - but was told it was harmless, and assumed it'd be addressed. no I haven't checked if it's an entered bug - should have.

...

Sometimes they result in a blank message window, but generally I can go on browsing. I don't really get the pattern yet.

I haven't seen this in recent builds, even when the error shows up in the logs.

This is a common problem when one of the include file has a blank line (or any html) and when the code then try to set a header for the page.

I would look for any empty line after any "?>" or " ?php> " tag in any of the page or config file.

The latest Trunk version has output buffering enabled. That should solve all these problems.

Thomas

On Wed, 19 Jul 2006 14:18:49 -0500, phil phil@cryer.us wrote:

On Wed, 19 Jul 2006 11:35:57 -0700, Mark Edwards mark@antsclimbtree.com wrote:

...

Scratch that, I'm getting lots of these errors even with the latest trunk:

[Wed Jul 19 11:28:07 2006] [error] [client 192.168.1.105] PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0

I've seen this error for weeks (months?) on my system; freebsd, apache2, php5, mysql 5 - but was told it was harmless, and assumed it'd be addressed. no I haven't checked if it's an entered bug - should have.

I now question any correlation between the error and the mail list going blank, although I'm not sure they aren't related either. Through persisting and refreshing, I am able to get the blanking to stop, so it could be attributable to something bad in my browser cache. Not sure.

On a side note, one ill effect of using wget from the browseable trunk to download a "snapshot" is that you get a bunch of index.html files in there which shouldn't be. Just fyi. Other than that, it seems to work. But maybe I'll get subversion downloaded anyway.

Thanks!