>[danger]xmlwrite类创建XML ~~~ //PDO连接数据库 $dsn = 'mysql:host=localhost;dbname=test;charset=utf8'; $username = 'root'; $passwd = '556656'; $pdo = new PDO($dsn,$username,$passwd); $sql = 'select * from stu_info'; $res = $pdo->query($sql)->fetchAll(2); //实例化XML的类 $xml = new XMLWriter; //设置保存文件 $xml->openUri('studentinfo3.xml'); //开启缩进 $xml->setIndent(true); //设置缩进字符 $xml->setIndentString("\t"); $xml->startDocument('1.0','utf-8'); //创建根节点标签开始部分 $xml->startElement('root'); foreach($res as $v){ $xml->startElement('student'); foreach($v as $k=>$vo){ $xml->startElement($k); $xml->text($vo); //创建$k结束标签 $xml->endElement(); } //创建student结束标签 $xml->endElement(); } //创建root根节点标签结束部分 $xml->endElement(); //文档结束 $xml->endDocument(); //清空缓存 $xml->flush(); ~~~