(PHP 5 >= 5.1.0, PHP 7)
ParentIterator::hasChildren — Check whether the inner iterator's current element has children
Check whether the inner iterator's current element has children.
锟斤拷锟斤拷锟斤拷锟斤拷未锟斤拷写锟侥碉拷锟斤拷锟斤拷锟叫诧拷锟斤拷锟叫憋拷
锟剿猴拷锟斤拷没锟叫诧拷锟斤拷锟斤拷
锟缴癸拷时锟斤拷锟斤拷 TRUE
锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE
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