3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php interface GeneratorResultInterface { public function __toString() : string; } interface GeneratorInterface { public function generate() : GeneratorResultInterface; } interface ExtendableGeneratorInterface extends GeneratorInterface { public function addExtension(); }
based on fJ1mI
Output for 7.0.0 - 7.2.0
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/BoT0g on line 6
Process exited with code 255.