3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface EditorInterface { public function getDefaultSettings($extra = NULL) : array; } class EditorInTheWild implements EditorInterface { public function getDefaultSettings(): array { return []; } }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of EditorInTheWild::getDefaultSettings(): array must be compatible with EditorInterface::getDefaultSettings($extra = null): array in /in/YoQn6 on line 8
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Declaration of EditorInTheWild::getDefaultSettings(): array must be compatible with EditorInterface::getDefaultSettings($extra = NULL): array in /in/YoQn6 on line 8
Process exited with code 255.
preferences:
126.7 ms | 401 KiB | 121 Q