3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function __invoke(): self { return new self(); } public function bar(): self { return $this(); } } var_dump(new Foo()()()()->bar()()()()());
Output for 8.4.1 - 8.4.6
object(Foo)#1 (0) { }
Output for 8.2.0 - 8.2.28, 8.3.0 - 8.3.20
Parse error: syntax error, unexpected token "(", expecting ")" in /in/Xbv66 on line 13
Process exited with code 255.

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