3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); (function():int{ return 'foo'; })();
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Return value of {closure}() must be of the type integer, string returned in /in/H5KmG:3 Stack trace: #0 /in/H5KmG(3): {closure}() #1 {main} thrown in /in/H5KmG on line 3
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/H5KmG on line 1 Parse error: syntax error, unexpected ':', expecting '{' in /in/H5KmG on line 3
Process exited with code 255.