RecursiveIteratorIterator::key

(PHP 5, PHP 7, PHP 8)

RecursiveIteratorIterator::key — Access the current key

说明

public RecursiveIteratorIterator::key(): mixed
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

The current key.

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