PHP find references like function similair to Eclipse



In eclipse I can right click a function or variable and select "Find references"
Which searches trough the project to find places where that specific function or code is used. (even in other classes)
This isn’t just a file string search. So similar named functions or variables from other classes are not included in the results.

I’ve been trying to find something similar for Atom but I’ve drawn a blank.
The only thing I’ve found is a Find declaration function where I can find where the specific function or variable is defined. But not all the places where it’s used.

Is there a package that has this functionality? If so please point me in the right direction.

With regards,