When I tried to get rsyslog running with php I didn't face much problems. Anyways I want to share some things I noticed while getting it to work.
First of all ubuntu uses rsyslog already. Just a simple
# apt-get install rsyslog-mysql
and all syslog messages went directly into the database "syslog". Configure /etc/rsyslog.d/mysql.conf to insert this information into a remote machine.
Now let's get to php. You have the option to set:
error_log=syslog
This however does log all messages with
php: whatever the issue or error is
If you want to replace "php" with a custom message, you have to call
openlog('myapp', LOG_PID | LOG_ODELAY, LOG_USER);
before any error happens. Because LOG_ODELAY is given, it won't connect to syslog unless any error happens, so one should be save to put this call at the top of your dispatcher file.
The final log message will look like that (254 is the process id):
Sep 26 13:39:44 root-server myapp[254]: the issue or error
Finally I wanted to log all messages created by agavi's logging system. Since I didn't found an existing
AgaviSyslogLoggerAppender, I wrote one and put it up on a github-gist.
Have fun logging!
