3v4l.org

run code in 300+ PHP versions simultaneously
<?php define(strict_types=1); function test(int $X):int { return $X * 2; }
Output for 7.0.0
Parse error: syntax error, unexpected '=', expecting ',' or ')' in /in/Pkn3I on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected '=' in /in/Pkn3I on line 3
Process exited with code 255.

preferences:
165.16 ms | 1399 KiB | 24 Q