3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function foo(string $bar = 1) { var_dump($bar); } foo('bar'); foo(); foo(null); foo(1);
Output for 7.0.0 - 7.0.1
Fatal error: Default value for parameters with a string type hint can only be string or NULL in /in/F3sco on line 5
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/F3sco on line 3 Fatal error: Default value for parameters with a class type hint can only be NULL in /in/F3sco on line 5
Process exited with code 255.
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