Description:
------------
When iterating over a DirectoryIterator, each element is the iterator itself representing the current file. It makes it impossible to convert the iterator to array, as all its elements will be references to the same object (the iterator).

See https://3v4l.org/P0H06.

Test script:
---------------
$it = new DirectoryIterator('/tmp');
$array = iterator_to_array($it);

foreach ($array as $fileInfo) {
    var_dump($fileInfo->getRealPath());
}

/*

Outputs:

bool(false)
bool(false)

*/

Expected result:
----------------
The expected result is to see real paths of the files under the /tmp directory. It works if the iterator is iterated directly, without being converted to an array first.

Actual result:
--------------
The actual result is all real paths are FALSE since after having been converted to an array, the directory iterator is in an invalid state.