FilterIterator::key

(PHP 5 >= 5.1.0, PHP 7)

FilterIterator::key — Get the current key

˵��

public FilterIterator::key ( void ) : mixed
Warning

��������δ��д�ĵ������в����б�

Get the current key.

����

�˺���û�в�����

����ֵ

The current key.

�μ�