3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a =cos(deg2rad((-2 * (45 - 90)))); var_export($a); echo "\n".sprintf('%F', $a)."\n";
Output for 5.6.28, 7.0.20, 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 - 8.2.18, 8.3.0 - 8.3.6
6.123233995736766E-17 0.000000
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.6
6.12323399573676603586882E-17 0.000000
preferences:
210.39 ms | 402 KiB | 213 Q