Instance of closure checking

Question

We have an anonymous function in a stdclass object like following code:

$std = new \stdclass();
$std->method = function(){echo "Hi I'm  instance of Closure.";};

echo get_class($std->method); // prints "Closure"

if ($std->method instanceof Closure) {
    echo "Happy Ending."; // This line never gets executed.
}

anonymous function are instance of Closure class, but when I check it with instanceof keyword it doesn't return true. what's the problem?

Answer 1

Problem is in namespace I had to use \Closure instead of Closure.