3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 4.4; $b = 2.2; $c = sqrt(pow(2.2+ sqrt(19.36-4.84),2) + pow(2.2,2)); $s = ($a + $b + $c) / 2; $area = sqrt($s*($s-$a)*($s-$a)*($s-$c)); echo $area;
Output for 4.3.0 - 7.1.0
1.6912340108193