3v4l.org

run code in 500+ PHP versions simultaneously
<?php $cars = ['Toyota', 'Volvo', 'BMW']; usort($cars, function ($a, $b) { return $a <=> $b; }); var_export($cars);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
array ( 0 => 'BMW', 1 => 'Toyota', 2 => 'Volvo', )

preferences:
59.63 ms | 1285 KiB | 4 Q