Weakref::getWeakref::release
(PECL weakref >= 0.1.0)
Weakref::release — Releases a previously acquired reference
Descrizione
public bool Weakref::release
( void
)
Releases a previously acquired reference. Potentially turning a strong reference back into a weak reference.
Elenco dei parametri
Questa funzione non contiene parametri.
Valori restituiti
Returns TRUE if the reference was previously acquired and thus could be
released, FALSE otherwise.
Esempi
Example #1 Weakref::release() example
<?php
class MyClass {
public function __destruct() {
echo "Destroying object!\n";
}
}
$o1 = new MyClass;
$r1 = new Weakref($o1);
$r1->acquire();
echo "Unsetting o1...\n";
unset($o1);
$o2 = $r1->get();
$r1->release();
echo "Unsetting o2...\n";
unset($o2);
?>
Il precedente esempio visualizzerà:
Unsetting o1... Unsetting o2... Destroying object!
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