3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function (string $foo = null, array $bar) { var_dump($foo, $bar); } foo(null, [123]);
Output for 7.0.0 - 7.0.1
Parse error: syntax error, unexpected 'foo' (T_STRING) in /in/h63Es on line 8
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Warning: Unsupported declare 'strict_types' in /in/h63Es on line 1 Parse error: syntax error, unexpected 'foo' (T_STRING) in /in/h63Es on line 8
Process exited with code 255.
preferences:
164.07 ms | 1395 KiB | 25 Q