Both are by default disabled, but can be enabled by specifying the paths to the log files in phttpd.conf or from the command line.
In case you are using some special features like "rkmultimode" or "software-virtual-servers"
(HTTP/1.1),
the common log is extended by some additional information.
Every daemon does ONLY write ONE logfile, so in those multiservermodes,
you need to write yourself tools
to split the common log into the seperate logs for the differnet servers.
For account the server is also able to get all traffic, including incoming
data and send mimeheaders. This
options can be set in the main configuration file.