(PHP 5 >= 5.1.0, PHP 7)
RecursiveIteratorIterator::nextElement — Next element
public RecursiveIteratorIterator::nextElement ( ) : void
Called when the next element is available.
This function is currently not documented; only its argument list is available.
This function has no parameters.
No value is returned.
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https://www.php.net/manual/en/recursiveiteratoriterator.nextelement.php