3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = 8; $y1 = -~$x * 4; $y2 = ($x-1) * 4; var_dump($y1,$y2) ; //28,28
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.1.0
int(36) int(28)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/DFCKM on line 5
Process exited with code 255.