no php error logging on apache

Question

Seems like I can't get error logging working on my server, I've set up my vhosts like in this description like suggested here .

<VirtualHost *:80>
   ServerAdmin admin@server.com
   DocumentRoot /var/www/html
   ServerName www.server.com
   ServerAlias server.com
   LogFormat combined
   ErrorLog /var/log/apache2/server.com-error_log
   TransferLog /var/log/apache2/server.com-access_log
   php_flag log_errors on
   php_flag display_errors off
   php_value error_reporting 6143
   php_value error_log /var/log/apache2/server.com-php-error.log
   ...
</VirtualHost>

access and error log are written correctly, the php error log file is created and has the same permission as the other two log files.

I also tried to set the logging in the php.ini, .htaccess file and in the script, all according to this guide .

php -v
 PHP 5.2.10-2ubuntu6.10 with Suhosin-Patch 0.9.7 (cli) (built: May  2 2011 23:24:44) 
 Copyright (c) 1997-2009 The PHP Group
 Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies

Are there any other places I could check? The vHost configuration worked flawlessly on other servers.

Answer 1

Probably it's due to permissions on /var/log/apache2 . Take into account that PHP is running as an apache module, so it is running as the www-data user (in ubuntu at least). So you need that this user has at least execute permission on /var/log/apache2 and write permission on the log files, or better yet, execute and write permission on /var/log/apache2 (to be able to create new log files if needed).

So you can save the php log to another folder, or make it writable by the www-data user (in the latter case, you may also edit the /etc/logrotate.d/apache2 file so new logfiles after rotation get owned by the www-data user.

Answer 2

Type into your php script:

error_reporting(E_ALL);
ini_set('display_errors', true);

Than you get your errors and warnings printed

Answer 3

尝试PHP日志的默认位置：/var/log/php.log