script:


<?

class TEST {
        var $foo;
}

function one()
{
        global $object;

        $object = new TEST();

        $object->foo = "bar";

        echo "\none() dump of object before unset\n";
        var_dump($object);

        unset($object);

        echo "\none() dump of object after unset\n";
        var_dump($object);

        two();
}

function two()
{
        global $object;
        echo "\ntwo() dump of object after unset\n";
        var_dump($object);
}

echo "<PRE>\n";
one();

echo "\n(no function) dump of object after unset\n";
var_dump($object);



produces:
one() dump of object before unset
object(test)(1) {
  ["foo"]=>
  string(3) "bar"
}

one() dump of object after unset
NULL

two() dump of object after unset
object(test)(1) {
  ["foo"]=>
  string(3) "bar"
}

(no function) dump of object after unset
object(test)(1) {
  ["foo"]=>
  string(3) "bar"
}



unset()ing an globally defined object within a function doesn't unset it globally - it can still be referred to in other functions.