[pmwiki-users] Re: blank page with beta55 and Apache2/PHP5

[Edward Chadwick]

OK, I finally got it sorted out. Just to recap, I was having a problem
where versions higher that beta28, including 2.0.5 produced no output.
Even a clean install produced a completely blank page.

I also tried a clean install on a new server with default
configuration and that worked fine. To trace the problem I compared
the php.ini file on the new server with that of the (non-)working
server. The difference was in session.save_handler. The one that
worked was set to 'files' and the one that did not work was set to
'user'.

The problem was that session.save_handler was set to 'user' because
that is a requirement for Drupal, also running on the same server.
However, 'files' is apparently required for PmWiki.

I solved this by setting session.save_handler back to 'files' in
php.ini and changing it to 'user' just for Drupal in an .htaccess
file.

Thanks for all the suggestions in troubleshooting this.

Ed Chadwick.


On 9/7/05, Edward Chadwick <edward.chadwick at gmail.com> wrote:
> Thanks again, Radu. Sorry for the delayed reply - I've been out for a few days.
> 
> On 9/3/05, Radu <radu at monicsoft.net> wrote:
> > What?? A clear install of beta55, with a minimal local/config.php
> > still produces no output? That is weird indeed. Try just
> > *un-gzing the most recent release (2.0.2, I believe),
> > *take the sample-config and put it in local/config.php,
> > *update $ScriptUrl and $PubDirUrl and
> > *try it again.
> 
> Exactly the same with 2.0.3. No output.
> 
> >
> > Having anything display is not a matter of passwords and chmods, but
> > one of defining the right passwords.
> >
> > Also, this behavior may happen if there are errors in the php code,
> > but they are muted by some php.ini configuration. Try running the
> > following php script:
> >
> > <? echo ini_get('error_reporting'); ?>
> 
> This produces 2047. What does this mean?
> 
> >
> > At 10:26 PM 8/31/2005, Edward Chadwick wrote:
> > >Tried that. Still produces no output, and there are no files in wiki.d.
> >
> > Do you have any files in wikilib.d? The default skin in pub/skins?
> 
> Yes I have all the files in wikilib.d, the rest of the setup including
> the skin is default.
> 
> >
> > >Is there anything else I should be checking for in the output of phpinfo?
> >
> > No, your beef is with http://isg.case.edu/pmwiki/pmwiki.php?action=diag
> >
> >
> > Cheers,
> > Radu
> > (www.monicsoft.net)
> >
> >
> 
> I also tried a clean install on another server with Apache2 and PHP5
> and it works perfectly. It's just on this server that it doesn't work.
> Must be something incompatible with my php config, but I've no idea
> what.
> 
> Ed.
> 
> 
> 


-- 
Edward K.J. Chadwick PhD.
Department of Biomedical Engineering
Wickenden Building 102
Case Western Reserve University
10900 Euclid Ave.
Cleveland, OH 44106-7207
USA

phone:  +1 216 368 0400
fax:    +1 216 368 4872
mobile: +1 216 235 8239
email:  edward.chadwick at case.edu