3v4l.org

run code in 300+ PHP versions simultaneously
<?php $qs = array(10,30,40,50,60,70,80,90,99); foreach ($qs as $q) { $bonif = pow( 20, ($q / 100) ); $salary = round(1000 * $bonif); echo $salary . "($bonif)\n"; }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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
1349(1.3492828476736) 2456(2.4564560522316) 3314(3.31445401734) 4472(4.4721359549996) 6034(6.0341763365452) 8142(8.1418106307381) 10986(10.985605433061) 14823(14.822688982139) 19410(19.409739007859)
preferences:
228.49 ms | 404 KiB | 329 Q