(PHP 5 >= 5.1.0, PHP 7, PHP 8)
RecursiveIteratorIterator::beginChildren — Begin children
Is called after calling RecursiveIteratorIterator::getChildren(), and its associated RecursiveIteratorIterator::rewind().
本函數還未編寫(xiě)文檔，僅有參數列表。
此函數沒(méi)有參數。
沒(méi)有返回值。