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<?php function test(Closure $callback): void { $toto = call_user_func($callback); } $fake = new class { public $called = false; public function __invoke() { $this->called = true; } }; var_dump($fake); test(Closure::fromCallable($fake)); var_dump($fake);
Output for git.master, git.master_jit, rfc.property-hooks
object(class@anonymous)#1 (1) { ["called"]=> bool(false) } object(class@anonymous)#1 (1) { ["called"]=> bool(true) }

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