CachingIterator::next
CachingIterator::offsetGet
CachingIterator
PHP Manual

# CachingIterator::offsetExists

(PHP 5 >= 5.2.0)

CachingIterator::offsetExists — The offsetExists purpose

### 설명

public void CachingIterator::offsetExists ( string `$index` )
Warning

이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

### 인수

`index`

  The index being checked.

### 반환값

Returns `TRUE` if an entry referenced by the offset exists, `FALSE` otherwise.

CachingIterator::next
CachingIterator::offsetGet
CachingIterator
PHP Manual