XML文件:

  Jack   Tom   Jerry   **代码：** $reader = new XMLReader(); $reader->open("example.xml"); while ($reader->read()) { if($reader->nodeType==XMLREADER::ELEMENT) { if ($reader->localName == "Human") { while ($reader->read()) { if ($reader->nodeType == XMLREADER::ELEMENT) { if ($reader->localName == "person") { $reader->read(); echo $reader->value; } ... while语句跳出需要执行break;但这里不知道从哪儿跳出，可以保证全部读出Tom,Jack,Jerry?