3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = function() { return 'ciao'; }; $b = function () use ($a) { return $a; }; echo $b()(); ?>
based on E9jaS
Output for 7.0.0 - 7.2.0
ciao
Output for 5.3.18 - 5.6.21
Parse error: syntax error, unexpected '(', expecting ',' or ';' in /in/HD6Y0 on line 11
Process exited with code 255.