(PHP 5, PHP 7)
RecursiveDirectoryIterator::hasChildren — Returns whether current entry is a directory and not '.' or '..'
public RecursiveDirectoryIterator::hasChildren ([ bool $allow_links = false ] ) : bool
This function is currently not documented; only its argument list is available.
allow_links
Returns whether the current entry is a directory, but not '.' or '..'
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https://www.php.net/manual/en/recursivedirectoryiterator.haschildren.php