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RecursiveTreeIterator::key

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

RecursiveTreeIterator::keyGet the key of the current element

说明

public RecursiveTreeIterator::key(): string

Gets 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.

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