3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $capacities = array(50000,200000,5000000); foreach ($capacities as $c) { echo sprintf("Capacity of %s will be allowed to overdraw by %s.\n", $c, log($c*1000,4)); }
based on SF16c
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Capacity of 50000 will be allowed to overdraw by 12.787712379549. Capacity of 200000 will be allowed to overdraw by 13.787712379549. Capacity of 5000000 will be allowed to overdraw by 16.109640474437.