Anonymous function in array

Question

I have declared

$func = array(
    \'a\' => array(
        \'b\' => function() {
            echo \"hello\";
        }
    )
);

I try

Answer 1

What you did works. Try this:

 array(
        'b' => function() {
            echo "hello";
        }
    )
);
$call = $func['a']['b'];
$call();

See also here.