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<?php class Foo { public function isCallable($bar) { return is_callable($bar); } } $foo = new Foo; $a = function() {}; class Bar { public function __invoke() {} } $b = new Bar; var_dump($foo->isCallable($a)); var_dump($foo->isCallable($b));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true)

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