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SplHeap::key

(PHP 5 >= 5.3.0, PHP 7)

SplHeap::keyReturn current node index

Description

public SplHeap::key ( ) : mixed

This function returns the current node index

Parameters

This function has no parameters.

Return Values

The current node index.

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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/splheap.key.php