WeakMap::count
(PECL weakref >= 0.2.0)
WeakMap::count — Counts the number of live entries in the map
Description
public WeakMap::count ( ) : int
Counts the number of live entries in the map.
Parameters
This function has no parameters.
Return Values
Returns the number of live entries in the map.
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https://www.php.net/manual/en/weakmap.count.php