(PHP 5 >= 5.1.0, PHP 7)
RecursiveIteratorIterator::getInnerIterator — Get inner iterator
public RecursiveIteratorIterator::getInnerIterator ( ) : iterator
Gets the current active sub iterator.
This function is currently not documented; only its argument list is available.
This function has no parameters.
The current active sub iterator.
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https://www.php.net/manual/en/recursiveiteratoriterator.getinneriterator.php