how easy is to use GO with other frameworks, let's say PHP?
Would it be possible to write an application that uses PHP for some tasks, so you can benefit from the speed of GO and the the maturity of PHP?
You'll be better off writing raw PHP without classes than using Go. Go performances are raw Go. As soon as you add any framework to the party , the perfs are falling. see the gorilla test which is a Go framework.
Gorilla is a toolkit, not a framework. It's nice, but it doesn't do all that much beyond the standard library. To me, Go+Gorilla vs raw Go is not similar to, say, a PHP framework vs raw PHP.
