生成如下XML串
Xml代碼

復(fù)制代碼 代碼如下:

???
???????
??????? content1
??????? 2009-10-11
???
???
???????
??????? content2
??????? 2009-11-11
???

方法I.【直接生成字符串】
使用純粹的PHP代碼生成字符串，并把這個(gè)字符串寫入一個(gè)以XML為后綴的文件。這是最原始的生成XML的方法，不過有效！

復(fù)制代碼 代碼如下:

$data_array = array(
??? array(
??? 'title' => 'title1',
??? 'content' => 'content1',
??????? 'pubdate' => '2009-10-11',
??? ),
??? array(
??? 'title' => 'title2',
??? 'content' => 'content2',
??? 'pubdate' => '2009-11-11',
??? )
);
$title_size = 1;
$xml = "\n";
$xml .= "

\n";
foreach ($data_array as $data) {
$xml .= create_item($data['title'], $title_size, $data['content'], $data['pubdate']);
}
$xml .= "

\n";
echo $xml;
//? 創(chuàng)建XML單項(xiàng)
function create_item($title_data, $title_size, $content_data, $pubdate_data)
{
??? $item = "\n";
??? $item .= "\n";
??? $item .= "" . $content_data . "\n";
??? $item .= " " . $pubdate_data . "\n";
??? $item .= "\n";
??? return $item;
}
?>

方法2：【DomDocument】
使用DomDocument生成XML文件，創(chuàng)建節(jié)點(diǎn)使用createElement方法，創(chuàng)建文本內(nèi)容使用createTextNode方法，添加子節(jié)點(diǎn)使用appendChild方法，創(chuàng)建屬性使用createAttribute方法

復(fù)制代碼 代碼如下:

$data_array = array(
??? array(
??? 'title' => 'title1',
??? 'content' => 'content1',
??????? 'pubdate' => '2009-10-11',
??? ),
??? array(
??? 'title' => 'title2',
??? 'content' => 'content2',
??? 'pubdate' => '2009-11-11',
??? )
);
//? 屬性數(shù)組
$attribute_array = array(
??? 'title' => array(
??? 'size' => 1
??? )
);
//? 創(chuàng)建一個(gè)XML文檔并設(shè)置XML版本和編碼。。
$dom=new DomDocument('1.0', 'utf-8');
//? 創(chuàng)建根節(jié)點(diǎn)
$article = $dom->createElement('article');
$dom->appendchild($article);
foreach ($data_array as $data) {
??? $item = $dom->createElement('item');
??? $article->appendchild($item);
??? create_item($dom, $item, $data, $attribute_array);
}
echo $dom->saveXML();
function create_item($dom, $item, $data, $attribute) {
??? if (is_array($data)) {
??????? foreach ($data as $key => $val) {
??????????? //? 創(chuàng)建元素
??????????? $$key = $dom->createElement($key);
??????????? $item->appendchild($$key);
??????????? //? 創(chuàng)建元素值
??????????? $text = $dom->createTextNode($val);
??????????? $$key->appendchild($text);
??????????? if (isset($attribute[$key])) {
??????????? //? 如果此字段存在相關(guān)屬性需要設(shè)置
??????????????? foreach ($attribute[$key] as $akey => $row) {
??????????????????? //? 創(chuàng)建屬性節(jié)點(diǎn)
??????????????????? $$akey = $dom->createAttribute($akey);
??????????????????? $$key->appendchild($$akey);
??????????????????? // 創(chuàng)建屬性值節(jié)點(diǎn)
??????????????????? $aval = $dom->createTextNode($row);
??????????????????? $$akey->appendChild($aval);
??????????????? }
??????????? }?? //? end if
??????? }
??? }?? //? end if
}?? //? end function
?>

方法3：【XMLWriter】
使用XMLWriter類創(chuàng)建XML文件，此方法在PHP 5.1.2后有效。另外，它可以輸出多種編碼的XML，但是輸入只能是utf-8

復(fù)制代碼 代碼如下:

$data_array = array(
??? array(
??? 'title' => 'title1',
??? 'content' => 'content1',
??????? 'pubdate' => '2009-10-11',
??? ),
??? array(
??? 'title' => 'title2',
??? 'content' => 'content2',
??? 'pubdate' => '2009-11-11',
??? )
);
//? 屬性數(shù)組
$attribute_array = array(
??? 'title' => array(
??? 'size' => 1
??? )
);
$xml = new XMLWriter();
$xml->openUri("php://output");
//? 輸出方式，也可以設(shè)置為某個(gè)xml文件地址，直接輸出成文件
$xml->setIndentString('? ');
$xml->setIndent(true);
$xml->startDocument('1.0', 'utf-8');
//? 開始創(chuàng)建文件
//? 根結(jié)點(diǎn)
$xml->startElement('article');
foreach ($data_array as $data) {
??? $xml->startElement('item');
??? if (is_array($data)) {
??????? foreach ($data as $key => $row) {
????????? $xml->startElement($key);
????????? if (isset($attribute_array[$key]) && is_array($attribute_array[$key]))
????????? {
????????????? foreach ($attribute_array[$key] as $akey => $aval) {
????????????? //? 設(shè)置屬性值
??????????????????? $xml->writeAttribute($akey, $aval);
??????????????? }
??????????? }
??????????? $xml->text($row);?? //? 設(shè)置內(nèi)容
??????????? $xml->endElement(); // $key
??????? }
??? }
??? $xml->endElement(); //? item
}
$xml->endElement(); //? article
$xml->endDocument();
$xml->flush();
?>

方法4: 【SimpleXML】
使用SimpleXML創(chuàng)建XML文檔

復(fù)制代碼 代碼如下:

$data_array = array(
??? array(
??? 'title' => 'title1',
??? 'content' => 'content1',
??????? 'pubdate' => '2009-10-11',
??? ),
??? array(
??? 'title' => 'title2',
??? 'content' => 'content2',
??? 'pubdate' => '2009-11-11',
??? )
);
//? 屬性數(shù)組
$attribute_array = array(
??? 'title' => array(
??? 'size' => 1
??? )
);
$string =

XML;
$xml = simplexml_load_string($string);
foreach ($data_array as $data) {
??? $item = $xml->addChild('item');
??? if (is_array($data)) {
??????? foreach ($data as $key => $row) {
????????? $node = $item->addChild($key, $row);
????????? if (isset($attribute_array[$key]) && is_array($attribute_array[$key]))
??????????? {
????????????? foreach ($attribute_array[$key] as $akey => $aval) {
???????????? //? 設(shè)置屬性值
????????????????? $node->addAttribute($akey, $aval);
??????????? }
????????? }
??????? }
??? }
}
echo $xml->asXML();
?>