(PHP 5 >= 5.3.0, PHP 7, PHP 8)
RecursiveIterator を反復処理し、ASCII グラフィックツリーを生成します。
$iterator,$flags = RecursiveTreeIterator::BYPASS_KEY,$cachingIteratorFlags = CachingIterator::CATCH_GET_CHILD,$mode = RecursiveTreeIterator::SELF_FIRSTRecursiveTreeIterator::BYPASS_CURRENTRecursiveTreeIterator::BYPASS_KEYRecursiveTreeIterator::PREFIX_LEFTRecursiveTreeIterator::PREFIX_MID_HAS_NEXTRecursiveTreeIterator::PREFIX_MID_LASTRecursiveTreeIterator::PREFIX_END_HAS_NEXTRecursiveTreeIterator::PREFIX_END_LASTRecursiveTreeIterator::PREFIX_RIGHT