Is there a way to pass every variable in a controller action, to the view automatical

Is this what you want to do:

http://php.net/manual/en/function.get-defined-vars.php
This function returns a multidimensional array containing a list of all defined variables, be them environment, server or user-defined variables, within the scope that get_defined_vars() is called.

Then you can pass that to the view (or, I dunno, make it a global variable and access it that way)

I don't recommend any of this, setting up a $data variable doesn't seem like a burden worth working around...