3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<? echo select(ord('F')*100+ord('K')); ?>
based on eGoMW
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function select() in /in/IROB7:2 Stack trace: #0 {main} thrown in /in/IROB7 on line 2
Process exited with code 255.
Output for 5.4.2 - 5.6.28
Fatal error: Call to undefined function select() in /in/IROB7 on line 2
Process exited with code 255.
Output for 5.3.18 - 5.3.29
<? echo select(ord('F')*100+ord('K')); ?>