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

WeakMap::offsetExists

(PHP 8)

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.

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