Fastest PHP framework
The fastest PHP framework is Phalcon.
It’s a PHP framework, which is written in C for maximal performance.
Benchmark
You could check comparision of Phalcon with other frameworks.
http://www.techempower.com/benchmarks/
Video tutorial
To start write applications, check this video tutorial.
http://vimeo.com/63022489
Devtools
This tools will help to develop stuff faster.
https://github.com/phalcon/phalcon-devtools