The PHP Mentoring organization has officially updated to an application rather than the GitHub wiki page for matching up mentors with potential apprentices. What is PHP Mentoring? Glad you asked...

We are a formal, personal, long term, peer to peer mentorship organization focused on creating networks of skilled developers from all walks of life. We are PHP developers first and foremost but that is not all we do, nor is it the only skill we intend to pass on to others.

We are mentors and apprentices, teachers and students, coaches, counselors and friends. We're not in this for profit but for the end result, a strong community of talented developers doing some fabulous work. We give back to the community as much as we take, we build up not tear down, and above all we believe in "play nice" and "code well".

The group looks to connect developers, matching those more experienced with ones maybe just starting out or wanting to learn more about a specific topic. They have some guidelines to follow if you're interested in becoming a mentor/apprentice. The application has just been launched and the mentor list is still being repopulated, but in the meantime you can check out the wiki page for more information on current mentors.