Php/docs/weakmap.offsetexists

• PHP Manual
• WeakMap
• Checks whether a certain object is in the map

WeakMap::offsetExists

(PECL weakref >= 0.2.0)

WeakMap::offsetExists — Checks whether a certain object is in the map

说明

public WeakMap::offsetExists ( object $object ) : bool

Checks whether the passed object is referenced in the map.

参数

object

Object to check for.

返回值

Returns true if the object is contained in the map, false otherwise.