3v4l.org

run code in 300+ PHP versions simultaneously

@ 2016-08-22T16:06:41Z

<?php
$food = Array
(
    'Joe' => Array
        (
            0 => 'Pizza',
            1 => 'Pasta',
            2 => 'Lasagne',
            3 => 'Tacos',
            4 => 'Hamburger'
        ),

    'Conny' => Array
        (
            0 => 'Pizza',
            1 => 'Pasta',
            2 => 'Lasagne',
            3 => 'Tacos',
            4 => 'Hamburger'
        ),

    'John' => Array
        (
            0 => 'Pizza',
            1 => 'Pasta'
        ),

    'Fred' => Array
        (
            0 => 'Pizza',
            1 => 'Pasta',
            2 => 'Soup',
            3 => 'Fish'
        ),

    'Greg' => Array
        (
            0 => 'Sushi'
        )
);

uasort($food, function($a, $b) {
    return count($b) <=> count($a);
});

$used = array();
foreach($food as $kl => $pl) {
    foreach($pl as $k => $p) {
        if(!in_array($p, $used)) {
            $used[] = $p;
        } else {
            unset($food[$kl][$k]);
        }
    }
}
$food = array_filter($food);
var_dump($food);

Output for git.master, git.master_jit, rfc.property-hooks: array(3) { ["Joe"]=> array(5) { [0]=> string(5) "Pizza" [1]=> string(5) "Pasta" [2]=> string(7) "Lasagne" [3]=> string(5) "Tacos" [4]=> string(9) "Hamburger" } ["Fred"]=> array(2) { [2]=> string(4) "Soup" [3]=> string(4) "Fish" } ["Greg"]=> array(1) { [0]=> string(5) "Sushi" } }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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

21.17 ms | 402 KiB | 8 Q