3v4l.org

run code in 300+ PHP versions simultaneously

@ 2020-04-20T04:04:32Z

<?php

$array = array ( array(
            'id' => '2',
            'name' => 'Item2',
            'children' => array(
                                 array(
                                            'id' => '1',
                                            'name' => 'Item1',
                                            'children' => array(
                                                                    array('id' => '5', 'name' => 'Item5')
                                                                )
                                ),
                                array(
                                            'id' => '4',
                                            'name' => 'Item4'
                                )
            )
),
 array(
        'id' => '3',
        'name' => 'Item3'
)
);

function list_items($array, $parent = 0) {
    $output = array();
    foreach ($array as $arr) {
        $output[] = array('id' => $arr['id'], 'name' => $arr['name'], 'parent' => $parent);
        if (is_array($arr['children'] ?? NULL)) {
            $output = array_merge($output, list_items($arr['children'], $arr['id']));
        }
    }
    return $output;
}

$items = list_items($array);
print_r($items);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => Array ( [id] => 2 [name] => Item2 [parent] => 0 ) [1] => Array ( [id] => 1 [name] => Item1 [parent] => 2 ) [2] => Array ( [id] => 5 [name] => Item5 [parent] => 1 ) [3] => Array ( [id] => 4 [name] => Item4 [parent] => 2 ) [4] => Array ( [id] => 3 [name] => Item3 [parent] => 0 ) )

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

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

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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

preferences:dark modelive preview

71.79 ms | 407 KiB | 5 Q