3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class X {} function test(int $number = null):X? { return null; } echo test();
based on 3gkLY
Output for 7.0.0
Parse error: syntax error, unexpected '?', expecting '{' in /in/qk6qB on line 4
Process exited with code 255.
Output for 5.3.20 - 5.6.16
Parse error: syntax error, unexpected ':', expecting '{' in /in/qk6qB on line 4
Process exited with code 255.