XML----DOM DELETE

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students.xml

<?xml version="1.0" encoding="utf-8"?><students><student><name>小明</name><age>10</age><introduce>来自广东</introduce></student><student><name>小花</name><age>21</age><introduce>来自北京</introduce></student><student sex="female"><name>小白</name><age>20</age><introduce>来自上海</introduce></student></students>

stu_del_dom.php

<?php$xmldoc = new DOMDocument();//1.创建DOMDocument对象$xmldoc->load("students.xml");//2.加载xml文件//删除一个学生信息$root = $xmldoc->getElementsByTagName("students")->item(0);    //取出根节点//找到所有student$stus = $xmldoc->getElementsByTagName("student");$stu = $stus->item(2);//确定要删除的student编号//$root->removeChild($stu);//第一种删除方法$stu->parentNode->removeChild($stu);//第二种删除方法//如果save是源文件名，则会对文件做更新处理//如果save是新文件名，则会按文件名创建文件并保存$xmldoc->save("students.xml");?>

input:

<?xml version="1.0" encoding="utf-8"?><students><student><name>小明</name><age>10</age><introduce>来自广东</introduce></student><student><name>小花</name><age>21</age><introduce>来自北京</introduce></student></students>

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