说明
public Judy::count
([ int
$index_start = 0
[, int $index_end = -1
]] ) : intCount the number of elements in the Judy array.
参数
-
index_start -
Start counting from the given index. Default is first index.
-
index_end -
Stop counting when reaching this index. Default is last index.
返回值
Return the number of elements.