Weak References

• Введение
• Установка и настройка
  • Требования
  • Установка
  • Типы ресурсов
• Weakref — The Weakref class
  • Weakref::acquire — Acquires a strong reference on that object
  • Weakref::__construct — Constructs a new weak reference
  • Weakref::get — Returns the object pointed to by the weak reference
  • Weakref::release — Releases a previously acquired reference
  • Weakref::valid — Checks whether the object referenced still exists