Using RecursiveIteratorIterator with namespaces?

Question

My problem is that when I'm using namespaces, I can't use the RecursiveIteratorIterator Class of the Standard PHP Library. The following code :

<?php namespace mynamespace;

    $arr = Array("abc", Array("def", "ghi", Array("jkl")));
    $it = new RecursiveIteratorIterator(new RecursiveArrayIterator($arr));
    $result = iterator_to_array($it, false);

?>

Returns:

PHP Fatal error: Uncaught Error: Class 'mynamespace\\RecursiveIteratorIterator' not found in ...

Answer 1

You need to reference the global namespace with \\ :

$it = new \RecursiveIteratorIterator(new \RecursiveArrayIterator($arr));

Or you can import them into the current namespace with use :

namespace mynamespace;
use RecursiveIteratorIterator;
use RecursiveArrayIterator;

See Using namespaces: Basics for details.