3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function __clone(): Foo { return new Foo; } }
Output for 8.3.5
Fatal error: Foo::__clone(): Return type must be void when declared in /in/RGkLS on line 4
Process exited with code 255.
Output for 7.4.0 - 7.4.2
Fatal error: Clone method Foo::__clone() cannot declare a return type in /in/RGkLS on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.27, 7.3.0 - 7.3.14
Fatal error: Foo::__clone() cannot declare a return type in /in/RGkLS on line 3
Process exited with code 255.
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