PHP - passing functions return to another function

Question

I have a PHP function that returns something:

function myfunction() {
   $array = array('one', 'two', 'three', 'four');

   foreach($array as $i) {
     echo $i;
   }
}

And another function where I want to pass return values from the function above:

function myfunction2() {
   //how to send myfunction()'s output here? I mean:
   //echo 'onetwothreefour';
   return 'something additional';
}

I guess it will look something like myfunction2(myfunction) but I don't know PHP too much and I couldn't make it work.

Solution

Yes, you just need

return myFunction();