3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '36'; $b = '-35.99'; $a *= 100; $b *= 100; echo (($a + $b)/100),"\n";
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.24, 7.4.0 - 7.4.12, 8.0.0
0.01