(PHP 5, PHP 7)
IteratorAggregate::getIterator — 锟斤拷取一锟斤拷锟解部锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷一锟斤拷锟解部锟斤拷锟斤拷锟斤拷锟斤拷
锟剿猴拷锟斤拷没锟叫诧拷锟斤拷锟斤拷
实锟斤拷锟斤拷 Iterator 锟斤拷 Traversable 锟接口碉拷锟斤拷锟揭伙拷锟绞碉拷锟斤拷锟�
失锟斤拷时锟阶筹拷 Exception锟斤拷