No error output?

Mike Hall wrote:

Every developer at my company has experience this problem too, at one
point or another. We get it with Apache 1.3 and PHP 5.x. We've been
unable to figure it out. I thought I had it tied down to the gzip
output compression at one stage. But then it suddenly started working
okay and I couldn't get it to break again.

I have problems like this on a regular basis in big/complex (well by my standards anyway)
codebases that have heavy php5 oo in them. no errors anywhere if I have a parse error
or a require_once statement fails, I havbe had the problem since php5beta3 (when I
started using php5) and have seen it happen on every version of php5 upto 5.0.4 (the highest version
I have used properly) on windows, debian, redhat and gentoo using apache and apache2.

basically AFAIC there is something wrong deep in the engine but given that I have
no idea how to prove this or provide any kind of short reproduce script I'm left to live
with it ... it may of course be a problem with my code, I'm thinking a possible
reference related segfault issue (and/or maybe __autoload() related). Actually IIRC
Derick Rethans has posted before about issues he has had where problems were not easily
(or at all) reproducable in a short script. (excuses to Derick if I misquote/misremember
what he wrote in the past)

actually this is one of the main reasons I read internals@ - in the hope
someone might offer information that will help me either fix this issue in my code,
expose a real engine problem or possibly give some inspiration as to how to track down
the problem.

... I just wish I had the skills to work this problem :-)

seeing as I don't I live with it and whenever I am faced with a blank page I know
exactly what to do ... find the parse error and if there is none check every require
statement in the files I have just changed... a process that alweays starts with this one liner:

find . -name *.php ! -exec php -l {} ;

Mike

On Fri, 28 Oct 2005 13:52:31 +0100
Marcus Bointon marcus@synchromedia.co.uk wrote:

I'm running a recent snap of 5.1 with apache 2.0.54 (from fink) and
MySQL 5.0.15 on OS X 10.4.2. For the last few days I've noticed that
I'm getting no error messages out at all, neither to the browser nor
to the server log. I have display_errors, log_errors and
log_startup_errors set to On, error_reporting set to E_ALL |
E_STRICT, but I'm seeing nothing on web output - a simple syntax
error results in a blank page, e.g.

<?php
sdfsdf
?>

gives a blank page and nothing in server log. It produces an expected
E_NOTICE error on a CLI version, so the problem is either in apache
or the PHP apache2filter module. My apache setup has not changed
recently whereas PHP has, so I'm looking there.

I've reconstructed my php.ini and httpd.conf files from scratch so
I'm pretty certain the settings in there are all ok. I did have
latest xdebug installed, but I'm still seeing this with it disabled.

As you might imagine, it's making debugging quite difficult. Has
anyone else seen this problem? I can't find a bug report that looks
like this.

Marcus

Marcus Bointon
Synchromedia Limited: Putting you in the picture
marcus@synchromedia.co.uk | http://www.synchromedia.co.uk

--

Mike Hall
Twist Digital Media
e. mike.hall@twistdigital.co.uk

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