php教程

WeakMap::offsetExists

(PECL weakref >= 0.2.0)

WeakMap::offsetExistsChecks 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.

User Contributed Notes

There are no user contributed notes for this page.

CopyRight © 2008-2022 verySource.Com All Rights reserved. 京ICP备17048824号-1 京公网安备:11010502034788