3v4l.org

run code in 500+ PHP versions simultaneously
<?php $users = json_decode('[{"first_name":"Rebecca"},{"first_name":"amy"},{"first_name":"Amy"},{"first_name":"stacy"}]', true); $firstNames = array_column($users, 'first_name'); array_multisort(array_map('strtolower', $firstNames), $firstNames, $users); var_export($users);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
array ( 0 => array ( 'first_name' => 'Amy', ), 1 => array ( 'first_name' => 'amy', ), 2 => array ( 'first_name' => 'Rebecca', ), 3 => array ( 'first_name' => 'stacy', ), )
preferences:
35.64 ms | 1137 KiB | 7 Q