PHP几种操作XML的方式（一）

<?php//使用输出的方式生成xml格式的文档function printXml() {header("Content-Type:text/xml");print '<?xml version="1.0" encoding="utf-8"?>'."\n";print '<shows>';$arr = array(array("name"=>"Simpsons","channnel"=>"FOX","start"=>"8:00","duration"=>"30"),array("name"=>"Law $amp; Order","chnannel"=>"NBC","start"=>"8:00 PM","duration"=>"60"));foreach($arr as $elem){print '<show>';foreach($elem as $key=>$value){print '<'.$key.'>'.$value.'</'.$key.'>';}print '</show>';}print '</shows>';}//使用DOMDocumentfunction useDomDocument() {$dom = new DOMDocument("1.0");$book = $dom->appendChild($dom->createElement('book'));$title = $book->appendChild($dom->createElement('title'));$title->appendChild($dom->createTextNode('PHP Cookbook'));$title->setAttribute('cover','soft');$author = $book->appendChild($dom->createElement('author'));$author->appendChild($dom->createTextNode('Sklar'));$author = $book->appendChild($dom->createElement('author'));$author->appendChild($dom->createTextNode('Trachtenberg'));//调整格式$dom->formatOutput = True;header("Content-Type:text/xml");echo $dom->saveXML();}//用simplexml解析function parseXml() {$xml = simplexml_load_file("d:/test.xml");foreach($xml as $person){echo $person->firstname.",".$person->lastname."<br/>";}}//使用dom读取xmlfunction parseXmlByDom() {$dom = new DOMDocument("1.0");$dom->load("d:/test.xml");foreach($dom->getElementsByTagName("person") as $person){$firstName = $person->getElementsByTagName("firstname")->item(0)->firstChild->nodeValue;echo $firstName."<br/>";}}//printXml();//useDomDocument();//parseXml();parseXmlByDom();?>