Online PHP editor | output for PsKSL

@ 2019-12-11T09:14:49Z

<?php

$array = array (
    array (
        'cat_id' => 14,
        'parent_id' => 2,
        'cat_url_title' => '20-a-43m'
    ),
    array (
        'cat_id' => 15,
        'parent_id' => 3,
        'cat_url_title' => '1-a-40m'
    ),
    array (
        'cat_id' => 13,
        'parent_id' => 2,
        'cat_url_title' => '16-a-20m'
    ),
    array (
        'cat_id' => 16,
        'parent_id' => 3,
        'cat_url_title' => '2-a-55m'
    ),
    array (
        'cat_id' => 12,
        'parent_id' => 2,
        'cat_url_title' => '12-a-16m'
    )
);

// array_multisort(array_column($array, 'cat_url_title'), SORT_NUMERIC, $array);

/* usort($array, function($a, $b) {
    return (int)$a['cat_url_title'] <=> (int)$b['cat_url_title'];
}); */

usort($array, fn($a, $b) => (int)$a['cat_url_title'] <=> (int)$b['cat_url_title']);


var_export($array);

Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: array ( 0 => array ( 'cat_id' => 15, 'parent_id' => 3, 'cat_url_title' => '1-a-40m', ), 1 => array ( 'cat_id' => 16, 'parent_id' => 3, 'cat_url_title' => '2-a-55m', ), 2 => array ( 'cat_id' => 12, 'parent_id' => 2, 'cat_url_title' => '12-a-16m', ), 3 => array ( 'cat_id' => 13, 'parent_id' => 2, 'cat_url_title' => '16-a-20m', ), 4 => array ( 'cat_id' => 14, 'parent_id' => 2, 'cat_url_title' => '20-a-43m', ), )
Output for 7.3.0 - 7.3.33: Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/PsKSL on line 37
Process exited with code 255.
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33: Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/PsKSL on line 37
Process exited with code 255.

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