CodeConnexx is November 8-9, 2012 in Indianapolis, Indiana, USA. Elizabeth M. Smith, who worked on ArticleFeedback (and used to hack on PHP), is giving a "Mentoring Developers" talk. The conference also includes talks on MySQL query optimization, MicroPHP, deployment, HTTP, managing geeks, and collaboration skills, with a focus on PHP.
Registration is $99 and includes free onsite childcare.