This month, Anthony Ferrara will be discussing PHPPHP. This is a PHP interpreter written entirely in PHP itself. Topics will include language theory, compiler design, and the problem of bootstrapping a compiler.
Additional information can be found at the project's Github repo: https://github.com/ircmaxell/PHPPHP
Here's the general agenda for the night:
6:45pm - Meet-up / Networking 7:00pm - Speaker / Topic: Anthony Ferrara - PHPPHP 8:00pm - Q&A and Wrap-up