robin

--TEST--
Returning an overloaded property by reference
--FILE--
<?php
class C {
    function &__get($unused) {
        global $global;
        return $global;
    }
}

function &getByRefExplicit() {
  $c = new C;
  return $c->__get('a');
}

function &getByRefImplicit() {
  $c = new C;
  // The problem only occurs if the property is returned directly.
  // Uncommenting the following 2 lines works around the problem:
  // $r =& $c->a;
  // return $r;
  return $c->a;
}

$global = 'original';
echo "Get reference to global via return-by-ref __get() called implicitly - OK:\n";
$c = new C;
$ref1 =& $c->a;
$ref1 = 'First change!';
var_dump($global);

unset($global);
$global = 'original';
echo "\nGet reference to global via return-by-ref __get() called explicitly from return-by-ref function - OK:\n";
$ref2 =& getByRefExplicit();
$ref2 = 'Second change!';
var_dump($global);

unset($global);
$global = 'original';
echo "\nGet reference to global via return-by-ref __get() called implicitly from return-by-ref function:\n";
$ref3 =& getByRefImplicit();
$ref3 = 'Third change!';
var_dump($global);
?>
--EXPECTF--
Get reference to global via return-by-ref __get() called implicitly - OK:
string(13) "First change!"

Get reference to global via return-by-ref __get() called explicitly from return-by-ref function - OK:
string(14) "Second change!"

Get reference to global via return-by-ref __get() called implicitly from return-by-ref function:
string(13) "Third change!"