PHP Manual
WeakMap
Counts the number of live entries in the map

WeakMap::count

(PECL weakref >= 0.2.0)

WeakMap::count — Counts the number of live entries in the map

说明

public WeakMap::count ( void ) : 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.

相关文章

php domnamednodemap get number of nodes in the map php map returns the number of values in the map php ldap 函数 count the number of entries in a search php mysqlnd qc 函数 returns information on the current handler the number of cache entries and cache entries if available php yp/nis 函数 returns the order number for a map php mongocursor counts the number of results for this query php phar returns the number of entries files in the phar archive php solrquery returns the maximum number of constraint counts that should be returned for the facet fields php spldoublylinkedlist counts the number of elements in the doubly linked list php splheap counts the number of elements in the heap php splpriorityqueue counts the number of elements in the queue php weakmap constructs a new map php weakmap counts the number of live entries in the map php weakmap advances to the next map element php weakmap checks whether a certain object is in the map php weakmap updates the map with a new key value pair php weakmap removes an entry from the map php weakmap rewinds the iterator to the beginning of the map php weakmap returns whether the iterator is still on a valid map element php ziparchive counts the number of files in the achive

关注编程学问公众号