3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo() : void { return null; }
based on cYv9a
Output for 7.1.0 - 7.2.0
Fatal error: A void function must not return a value (did you mean "return;" instead of "return null;"?) in /in/UDUSe on line 5
Process exited with code 255.
Output for hhvm-3.11.1 - 3.17.3, 7.0.0 - 7.0.20
Output for hhvm-3.10.1
Fatal error: Syntax only allowed in Hack files (<?hh) or with -v Eval.EnableHipHopSyntax=true in /in/UDUSe on line 3
Process exited with code 255.
Output for 5.5.0 - 5.6.30
Parse error: syntax error, unexpected ':', expecting '{' in /in/UDUSe on line 3
Process exited with code 255.