3v4l.org

run code in 300+ PHP versions simultaneously
<?php $map = array(array('-1'=>0, '-10'=>0, '-100'=>0), array(array('-1'=>0, '-10'=>0, '-100'=>0))); function ksort_recursive($array){ if (is_array($array)) { ksort($array); foreach ($array as $k => $v) { $array[$k] = call_user_func(__FUNCTION__, $v); } } return $array; } $map = ksort_recursive($map); // ksort($map[0]); // ksort($map[0]); // ksort($map[0]); // ksort($map[1][0]); // ksort($map[1][0]); // ksort($map[1][0]); print_r($map);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Array ( [0] => Array ( [-100] => 0 [-10] => 0 [-1] => 0 ) [1] => Array ( [0] => Array ( [-100] => 0 [-10] => 0 [-1] => 0 ) ) )
preferences:
234.34 ms | 406 KiB | 328 Q