3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function whipme($a) { echo (int) $a." "; $a--; $a++; var_dump($a); } whipme(NULL); whipme(0);
Output for 4.3.0 - 7.2.0
0 int(1) 0 int(0)