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<?php $foo = null; $foo = function() use (&$foo){ var_dump($foo); }; ($foo()->__invoke()==$foo);
Output for git.master, git.master_jit, rfc.property-hooks
object(Closure)#1 (1) { ["static"]=> array(1) { ["foo"]=> *RECURSION* } } Fatal error: Uncaught Error: Call to a member function __invoke() on null in /in/PQCAv:6 Stack trace: #0 {main} thrown in /in/PQCAv on line 6
Process exited with code 255.

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