WeakMap::count
(PHP 8)
WeakMap::count — Counts the number of live entries in the map
说明
public WeakMap::count
(
) : int
Counts the number of live entries in the map.
参数
此函数没有参数。
返回值
Returns the number of live entries in the map.
(PHP 8)
WeakMap::count — Counts the number of live entries in the map
Counts the number of live entries in the map.
此函数没有参数。
Returns the number of live entries in the map.