Description:
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In my opinion DirectoryIterator should work with include_path, but it doesn't. I couldn't find any information about this in the documentation, so maybe I'm wrong.

Reproduce code:
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<?php

error_reporting(E_ALL|E_STRICT);

set_include_path('./../');

$dir = new DirectoryIterator('test2');

?>


Expected result:
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A new dir iterator from './../test2' should be created!

Actual result:
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PHP (DirectoryIterator) throws an Exception.