RecursiveTreeIterator::key

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

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

說明

public RecursiveTreeIterator::key(): mixed

Gets the current key prefixed and postfixed.

警告

本函數(shù)還未編寫文檔，僅有參數(shù)列表。

參數(shù)

此函數(shù)沒有參數(shù)。

返回值

Returns the current key prefixed and postfixed.