WeakMap
PHP Manual

WeakMap::key

(PECL weakref >= 0.2.0)

WeakMap::keyReturns the current key under iteration.

Descrição

public object WeakMap::key ( void )

Returns the object serving as key in the map, at the current iterating position.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

The object key currently being iterated.


WeakMap
PHP Manual