php 讀寫 xml

讀取xml資訊

test.xml

張三23努力學習李四23努力學習

test.php

load("test.xml");$stus = $xmldoc->getElementsByTagName("student");for($i=0;$i < $stus->length;$i++){$stu = $stus->item($i);echo getNodeVal($stu,"name")."--".getNodeVal($stu,"age")."--".getNodeVal($stu,"intro")."
";}function getNodeVal(&$MyNode,$tagName){return $MyNode->getElementsByTagName($tagName)->item(0)->nodeValue;}?>

寫xml：

load("classes2.xml");//添加一個學生資訊//建立學生結點$root = $xmldoc->getElementsByTagName("class")->item(0);$stu_node = $xmldoc->createElement("student");$stu_node->setAttribute("sex", "男");//建立名字結點並且掛載到學生結點下$stu_node_name=$xmldoc->createElement("name");$stu_node_name->nodeValue = "唐唐";$stu_node->appendChild($stu_node_name);$stu_node_age=$xmldoc->createElement("age");$stu_node_age->nodeValue = "24";$stu_node->appendChild($stu_node_age);$stu_node_intro=$xmldoc->createElement("intro");$stu_node_intro->nodeValue = "我是唐唐,我一直很努力";$stu_node->appendChild($stu_node_intro);//把學生結點掛載到根結點下$root->appendChild($stu_node);$xmldoc->save("new.xml");?>

刪除結點：

load("test.xml");//刪除一個結點$root = $xmldoc->getElementsByTagName("class")->item(0);$stus = $xmldoc->getElementsByTagName("student");$stu1 = $stus->item(2);//$root->removeChild($stu1);$stu1->parentNode->removeChild($stu1);$xmldoc->save("test.xml");?>

修改結點：

load("test.xml");//刪除一個結點$root = $xmldoc->getElementsByTagName("class")->item(0);$stus = $xmldoc->getElementsByTagName("student");$stu1 = $stus->item(0);$stu1_name = $stu1->getElementsByTagName("name")->item(0);$stu1_name->nodeValue = "唐唐改名了";$xmldoc->save("test.xml");?>

以上就介紹了php 讀寫 xml，包括了方面的內容，希望對PHP教程有興趣的朋友有所協助。

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