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<?php class A { function __invoke($i) { return $i *2; } } $a = new A(); function test(\Closure $b) { var_dump($b(5)); } test($a);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: test(): Argument #1 ($b) must be of type Closure, A given, called in /in/nf6WB on line 15 and defined in /in/nf6WB:11 Stack trace: #0 /in/nf6WB(15): test(Object(A)) #1 {main} thrown in /in/nf6WB on line 11
Process exited with code 255.

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