3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo(string $bar = null) : null { // } var_dump(foo(123));
based on GjH9c
Output for 7.0.0 - 7.0.1
Fatal error: Cannot use 'null' as class name as it is reserved in /in/eWmBi on line 3
Process exited with code 255.
Output for 5.3.21 - 5.6.16
Parse error: syntax error, unexpected ':', expecting '{' in /in/eWmBi on line 3
Process exited with code 255.