Generator::key

Generator::keyGet the yielded key

Description

public Generator::key(): mixed

Gets the key of the yielded value.

Parameters

This function has no parameters.

Return Values

Returns the yielded key.

Examples

Example #1 Generator::key() example

<?php

function Gen()
{
yield
'key' => 'value';
}

$gen = Gen();

echo
"{$gen->key()} => {$gen->current()}";

The above example will output:

key => value