PHP - Manual: CachingIterator::key
2024-12-21
(PHP 5, PHP 7, PHP 8)
CachingIterator::key — Return the key for the current element
本函数还未编写文档,仅有参数列表。
This method may return a key for the current element.
此函数没有参数。
官方地址:https://www.php.net/manual/en/cachingiterator.key.php