Apache Log Analyzer 2 Feed integrates some 3rd party PHP libraries, for example to parse log files and create the feed.
All those libraries are listed here with their respective authors.
The FileIterator class takes advantage of PHP5 Iterator() interface to enable you to very easily loop over each line of a file, without having to write the same code over and over again.
This PHP library is used by the tool to read log rows.
Apache Log Regex
Apache Log Regex is a PHP class that will parse Apache webserver access logs and return each lines component values in an associative array (hash). It’s ported from a CPAN module with own improvements.
This is the PHP translation of the famous Apache::LogRegexPERL counterpart.