3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo(): void { return 1; }
Output for 7.1.0 - 7.3.0
Fatal error: A void function must not return a value in /in/H4bfA on line 4
Process exited with code 255.
Output for hhvm-3.22.0, 7.0.0 - 7.0.33
Output for 5.3.20 - 5.6.38
Parse error: syntax error, unexpected ':', expecting '{' in /in/H4bfA on line 3
Process exited with code 255.