WeakMap
PHP Manual

WeakMap::offsetGet

(PECL weakref >= 0.2.0)

WeakMap::offsetGetReturns the value pointed to by a certain object

说明

public mixed WeakMap::offsetGet ( object $object )

Returns the value pointed to by a certain object.

参数

object

Some object contained as key in the map.

返回值

Returns the value associated to the object passed as argument, NULL otherwise.


WeakMap
PHP Manual