3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function a(){return 'b';} function b() {echo 'b';} a()();
Output for 7.0.0 - 7.2.0
b
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/sEgHv on line 6
Process exited with code 255.