3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(self $s): self { var_dump($s); }
Output for 8.0.1 - 8.0.26, 8.1.0 - 8.1.13
Fatal error: Cannot use "self" when no class scope is active in /in/uELYa on line 4
Process exited with code 255.

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