如何配置emacs以进行正确的PHP开发？

My current setup in emacs for PHP development has a variety of shortcomings. I often use a mixed mode of html and php. I want the mode to be able to recognize what context I'm in and format appropriately. I am especially interested in appropriate tabbing. This is the most important feature for me. Correct coloring would be nice, but if it messes up once in a while that's ok.My current setup in emacs for PHP development h