I primarily use the Adaptive and the Boxy Ocean color scheme.
As alternative, I also use the Soda theme and the Inspired GitHub color scheme.
The Operator Mono as my primary coding font.
I also use SublimeLinter to get PHP syntax checking in Sublime.
Based on: https://medium.com/@taylorotwell/how-i-work-a22010d1ad82
For latest releases and announcements, follow on Twitter: @enunomaduro