An Iterator is "valid" when it has additional elements, beyond its element index.
Said another way: After an Iterator is next()'d to its final element, the Iterator is no longer "valid".
Said another way: A "hasNext" check would simply return ::valid()
IteratorIterator::valid
(PHP 5 >= 5.1.0, PHP 7)
IteratorIterator::valid — Checks if the iterator is valid
설명
public bool IteratorIterator::valid
( void
)
Checks if the iterator is valid.
인수
이 함수는 인수가 없습니다.
반환값
Returns TRUE if the iterator is valid, otherwise FALSE
참고
- iterator_count() - Count the elements in an iterator
- IteratorIterator::current() - Get the current value
add a note
User Contributed Notes 1 note
mike at eastghost dot com ¶
6 years ago
