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@ 2019-11-26T21:42:59Z

<?php

$example = [
    ['text' => 'a', 'children' => [
        ['text' => 'b'],
        ['text' => 'c'],
        ['text' => 'd', 'children' => [
            ['text' => 'e'],
            ['text' => 'f'],
            ['text' => 'g', 'children' => [
                ['text' => 'h'],
                ['text' => 'i'],
                ['text' => 'j'],
            ]],
            ['text' => 'k'],
            ['text' => 'l'],
            ['text' => 'm'],
        ]],
        ['text' => 'n'],
        ['text' => 'o'],
        ['text' => 'p'],
    ]]
];

function listElements(array $input, $depth = 0)
{
    end($input);
    $final = key($input);
    $n = count($input);
    foreach ($input as $key => $element) {
        echo $element['text'];
        echo ($key == $final) ? " last of $n," : '';
        echo " depth $depth", PHP_EOL;
        if (isset($element['children'])) {
            listElements($element['children'], $depth + 1);
        }
    }
}

listElements($example);

Output for git.master, git.master_jit, rfc.property-hooks: a last of 1, depth 0 b depth 1 c depth 1 d depth 1 e depth 2 f depth 2 g depth 2 h depth 3 i depth 3 j last of 3, depth 3 k depth 2 l depth 2 m last of 6, depth 2 n depth 1 o depth 1 p last of 6, depth 1

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Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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