global scope isn't global any more...

outer_inner_scope.php

<?php

  $global1 = "boo!";
  
  function outer(){
    
    global $global1;
    $global2 = "ya!";
    echo "<p>outer says global1 is $global1</p>"; 
    function inner(){
      global $global1, $global2;
      echo "<p>inner says global1: $global1, global2: $global2</p>";
    }
    inner();
  }
  
  outer();