3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo strlen((int) 18 ?? null);
Output for 7.0.0 - 7.2.0
2
Output for 5.3.18 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/72UR2 on line 3
Process exited with code 255.