Online PHP editor | output for oGSdd

<?php

$data = [
    [
        'id'       => 2,
        'position' => 2,
    ],
    [
        'id'       => 1,
        'position' => 1,
    ],
    [
        'id'       => 1,
        'position' => 0,
    ],
    [
        'id'       => 2,
        'position' => 1,
    ],
    [
        'id'       => 2,
        'position' => 0,
    ],
    [
        'id'       => 1,
        'position' => 2,
    ],
];

usort(
    $data,
    function ($a, $b) {
        if ($a['position'] == $b['position']) {
            return 0;
        }

        return ($a['position'] < $b['position']) ? -1 : 1;
    }
);

usort(
    $data,
    function ($a, $b) {
        if ($a['id'] == $b['id']) {
            return 0;
        }

        return ($a['id'] < $b['id']) ? -1 : 1;
    }
);

var_dump($data);

eol versions

based on 53ZsZ

Output for 7.0.0 - 7.2.0: array(6) { [0]=> array(2) { ["id"]=> int(1) ["position"]=> int(0) } [1]=> array(2) { ["id"]=> int(1) ["position"]=> int(1) } [2]=> array(2) { ["id"]=> int(1) ["position"]=> int(2) } [3]=> array(2) { ["id"]=> int(2) ["position"]=> int(0) } [4]=> array(2) { ["id"]=> int(2) ["position"]=> int(1) } [5]=> array(2) { ["id"]=> int(2) ["position"]=> int(2) } }
Output for 5.4.10 - 5.6.28: array(6) { [0]=> array(2) { ["id"]=> int(1) ["position"]=> int(2) } [1]=> array(2) { ["id"]=> int(1) ["position"]=> int(1) } [2]=> array(2) { ["id"]=> int(1) ["position"]=> int(0) } [3]=> array(2) { ["id"]=> int(2) ["position"]=> int(2) } [4]=> array(2) { ["id"]=> int(2) ["position"]=> int(1) } [5]=> array(2) { ["id"]=> int(2) ["position"]=> int(0) } }
Output for 5.3.20 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/oGSdd on line 3
Process exited with code 255.