3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 1; $f = function() use ($a) { echo $a + 1; }; echo $a; f();
Output for 7.0.0 - 7.3.0
1 Fatal error: Uncaught Error: Call to undefined function f() in /in/jniLD:8 Stack trace: #0 {main} thrown in /in/jniLD on line 8
Process exited with code 255.
Output for hhvm-3.15.4
1 Fatal error: Uncaught Error: Call to undefined function f() in /in/jniLD:8 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.0 - 5.6.38
1 Fatal error: Call to undefined function f() in /in/jniLD on line 8
Process exited with code 255.