[TigerC10]

You'll have to write wrapper functions. You can't directly access the nested classes from outside, so wrapper functions will let you do that.

outer_class()
{
     inner_class()
     {
          //...
          $inner_variable = 'inside';
     }
     
     $g = new inner_class();
     function access_inner_class_var()
     {
          return $g->inner_variable;
     }
}

$z = new outer_class();

[S]$failed = $z->$g->inner_variable;[/S]
$success = $z->access_inner_class_var();

See? Alternatively, you could declare the inner class as public - but this is generally considered bad programming practice.