PHP中DOMDocument生成与解析XML格式数据

$arr[] = array(

'name' => $row['name'],

'sex' => $row['sex'],

'age' => $row['age']

);

$doc = new DOMDocument('1.0', 'utf-8'); // 声明版本和编码

$doc->formatOutput = true;
$r = $doc->createElement("root");

$doc->appendChild($r);
foreach ($arr as $dat) {

$b = $doc->createElement("data");
$name = $doc->createElement("name");

$name->appendChild($doc->createTextNode($dat['name']));

$b->appendChild($name);
$sex = $doc->createElement("sex");

$sex->appendChild($doc->createTextNode($dat['sex']));

$b->appendChild($sex);

$age = $doc->createElement("age");

$age->appendChild($doc->createTextNode($dat['age']));

$b->appendChild($age);

$r->appendChild($b);

}
echo $doc->saveXML();

header("Content-type:text/html; Charset=utf-8");

$url = "createXML.php";

$reader = new XMLReader(); //实例化XMLReader

$reader->open($url); //获取xml

$i=1;

while ($reader->read()) {

if ($reader->nodeType == XMLReader::TEXT) { //判断node类型

$m = $i%3;

if($m==1)

$name = $reader->value; //读取node值

if($m==2)

$sex = $reader->value;

if($m==0){

$age = $reader->value;

$arr[] = array(

'name' => $name,

'sex' => $sex,

'age' => $age

);

}

$i++;

}

}

//print_r($arr);