3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function abc?($abc) { return $abc; } echo abc?('test');
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.6
Parse error: syntax error, unexpected '?', expecting '(' in /in/a7BZq on line 3
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: syntax error, unexpected '?', expecting '(' in /in/a7BZq:3 Stack trace: #0 {main}
Process exited with code 255.