- PHP 手册
- 函数参考
- 其它基本扩展
- SPL
- 迭代器
- RecursiveTreeIterator
RecursiveTreeIterator::key
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
RecursiveTreeIterator::key — Get the key of the current element
说明
public RecursiveTreeIterator::key(): mixedGets the current key prefixed and postfixed.
警告本函数还未编写文档，仅有参数列表。
参数
此函数没有参数。
返回值
Returns the current key prefixed and postfixed.
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/recursivetreeiterator.key.php