IteratorIterator::getInnerIterator
IteratorIterator::next
IteratorIterator
PHP Manual

# IteratorIterator::key

(PHP 5 >= 5.1.0)

IteratorIterator::key — Get the key of the current element

### 설명

public void IteratorIterator::key ( void )

Get the key of the current element.

### 인수

이 함수는 인수가 없습니다.

### 반환값

The key of the current element.

### 참고

- IteratorIterator::current - Get the current value

IteratorIterator::getInnerIterator
IteratorIterator::next
IteratorIterator
PHP Manual