3v4l.org

run code in 500+ PHP versions simultaneously

@ 2022-11-13T21:13:07Z

<?php

$in[] = array('year' => '2010', 'month' => '11', 'grupo' => '2', 'quantity' => 3);
$in[] = array('year' => '2010', 'month' => '11', 'grupo' => '3', 'quantity' => 4);
$in[] = array('year' => '2011', 'month' => '2', 'grupo' => '2', 'quantity' => 4);
$in[] = array('year' => '2011', 'month' => '2', 'grupo' => '2', 'quantity' => 4);
$in[] = array('year' => '2012', 'month' => '3', 'grupo' => '4', 'quantity' => 3);
$in[] = array('year' => '2012', 'month' => '3', 'grupo' => '4', 'quantity' => 3);

$result = [];
foreach ($in as $row) {
    $compositeKey = implode(array_slice($row, 0, 3));
    if (!isset($result[$compositeKey])) {
        $result[$compositeKey] = $row;
    } else {
        $result[$compositeKey]['quantity'] += $row['quantity'];
    }
}
var_export(
    array_values($result)
);

Output for rfc.property-hooks, git.master, git.master_jit: array ( 0 => array ( 'year' => '2010', 'month' => '11', 'grupo' => '2', 'quantity' => 3, ), 1 => array ( 'year' => '2010', 'month' => '11', 'grupo' => '3', 'quantity' => 4, ), 2 => array ( 'year' => '2011', 'month' => '2', 'grupo' => '2', 'quantity' => 8, ), 3 => array ( 'year' => '2012', 'month' => '3', 'grupo' => '4', 'quantity' => 6, ), )

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

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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

preferences:dark modelive previewkey bindings

56.59 ms | 1318 KiB | 4 Q