3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); function foo (string $bar = null ): string { return 'test'; }; foo(); foo(null); foo('100');
based on s9V0K
Output for 7.0.0 - 7.2.0
Output for 5.3.19 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/KHT50 on line 3 Parse error: syntax error, unexpected ':', expecting '{' in /in/KHT50 on line 6
Process exited with code 255.