I have a page that includes/embeds a file that contains a number of functions.

One of the functions has a variable I want to pass back onto the page that the file is embedded on.

<?php
include('functions.php');

userInGroup();

if($user_in_group) {
 print 'user is in group';
} else {
 print 'user is not in group';
}
?>

function within functions.php

<?php
function userInGroup() {
 foreach($group_access as $i => $group) {
  if($group_session == $group) {
   $user_in_group = TRUE;
   break;
  } else {
   $user_in_group == FALSE; 
  }
 }
}?>

I am unsure as to how I can pass the value from the function userInGroup back to the page it runs the conditional if($user_in_group) on

Any help is appreciated.