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@ 2014-05-26T12:29:45Z

<?php

function show($arr, $prefix = '')
{
    if (!is_array($arr))
    {
        if ($prefix)
        {
            echo $prefix . '->'. $arr, "\n";
        }
        else
        {
            echo $arr, "\n";
        }
    }
    else
    {
        foreach ($arr as $key => $val)
        {
            $pre = $prefix;

            if (is_array($val))
            {
                if ($pre)
                {
                    $pre = $pre . '->' . $key;
                }
                else
                {
                    $pre = $key;
                }
                show($val, $pre);
            }
            else
            {
                show($val, $pre);
            }
        }
    }
}

$list = array(
    'transport' => array(
        'plane' => array(
            'boeing',
            'airbus',
        ),
        'car' => array(
            'audi',
            'ford'
        ),
    ),
);

show($list);

Output for git.master, git.master_jit, rfc.property-hooks: transport->plane->boeing transport->plane->airbus transport->car->audi transport->car->ford

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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