Php/docs/weakmap.offsetexists
From Get docs
WeakMap::offsetExists
(PECL weakref >= 0.2.0)
WeakMap::offsetExists — Checks whether a certain object is in the map
Description
public WeakMap::offsetExists
( object $object
) : bool
Checks whether the passed object is referenced in the map.
Parameters
object- Object to check for.
Return Values
Returns TRUE if the object is contained in the map, FALSE otherwise.
