PHP 操作xml编程之xml的crud操作

时间：2015-01-23 来源：西部数据作者：西部数据

本文章来给大家介绍一个PHP 操作xml编程之xml的crud操作,有需要了解的同学可参考.

html代码页面,代码如下:

<html>

<head>

    <meta http-equiv="Content-type" content="text/html;charset=utf-8">

</head>

<body>

    <form action="wordProcess.php" method="post">

        <input type="text" name="enword">

        <input type="hidden" name="type" value="query">

        <input type="submit" value="查询">

    </form>

    <span>添加单词</span>

    <form action="wordProcess.php" method="post">

        英文:<input type="text" name="enword"><br>

        中文:<input type="text" name="zhword"><br>

        

        <input type="submit" name="type" value="添加">

        <input type="submit" name="type" value="修改">

    </form>

    <form action="wordProcess.php" method="post">

        <input type="text" name="word">

        <input type="hidden" name="type" value="delete">

        <input type="submit" value="删除">

    </form>

</body>

</html>

wordpress.php文件,代码如下:

<?php

    //接收类型看看用户做什么(查询、添加....)

    $type=$_REQUEST['type'];

    //echo $type;

    //exit();

    //创建xml文档对象

    $doc=new DOMDocument();

    $doc->load("words.xml");

    //进行判断

    if($type=="query"){

        //获取用户输入的值

        $enword=$_REQUEST['enword'];



        //判断是否进入查询

        $isEnter=false;

        //获取所有单词节点

        $words=$doc->getElementsByTagName("word");

        //遍历单词节点

        for($i=0;$i<$words->length;$i++){

            $word_node=$words->item($i);

            //获取不同的语种

            $en_word=getNodeVal($word_node,"en");

            $zh_word=getNodeVal($word_node,"zh");

            //查询

            if($enword==$en_word){

                $isEnter=true;

                echo $enword."的中文意思是:".getNodeVal($word_node,"zh");

                echo "<br/><a href='wordView.php'>返回继续查询</a>";

            }else if($enword==$zh_word){

                $isEnter=true;

                echo $enword."的英文意思是:".getNodeVal($word_node,"en");

                echo "<br/><a href='wordView.php'>返回继续查询</a>";

            }

        }

        if(!$isEnter){

            echo "无法查询";

            echo "<br/><a href='wordView.php'>返回继续查询</a>";

        }

    }else if($type=="添加"){

        //接收

        $enword=$_REQUEST['enword'];

        $zhword=$_REQUEST['zhword'];

        if(!emptyempty($enword)&&!emptyempty($zhword)){

            //获取根节点

            $root=$doc->getElementsByTagName("words")->item(0);



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

            $en=$doc->createElement("en",$enword);

            $zh=$doc->createElement("zh",$zhword);

            //进行挂载

            $root->appendChild($word);

            $word->appendChild($en);

            $word->appendChild($zh);

            //保存xml文件

            $doc->save("words.xml");

            echo "添加成功<br/><a href='wordView.php'>返回继续操作</a>";

        }else{



            echo "请输入单词";

            echo "<br/><a href='wordView.php'>返回继续操作</a>";

            exit();

        }

    }else if($type=="delete"){



        $word=$_REQUEST['word'];

        //获取所有单词节点

        $words=$doc->getElementsByTagName("word");

        $isEnter=false;

        //遍历单词节点

        for($i=0;$i<$words->length;$i++){

            $word_node=$words->item($i);

            //获取不同的语种

            $en_word=getNodeVal($word_node,"en");

            $zh_word=getNodeVal($word_node,"zh");

            //查询

            if($word==$en_word || $word==$zh_word){

                $isEnter=true;

                //找到父节点

                $word_node->parentNode->removeChild($word_node);

                $doc->save("words.xml");

                echo "删除成功<br/><a href='wordView.php'>返回继续操作</a>";

            }

        }

        if(!$isEnter){

            echo "操作失败";

            echo "<br/><a href='wordView.php'>返回继续操作</a>";

        }

    }else if($type="修改"){

        //接收

        $enword=$_REQUEST['enword'];

        $zhword=$_REQUEST['zhword'];

        if(!emptyempty($enword)&&!emptyempty($zhword)){

            //获取所有单词节点

            $words=$doc->getElementsByTagName("word");

            //遍历单词节点

            $isEnter=false;

            for($i=0;$i<$words->length;$i++){

                $word_node=$words->item($i);

                //获取不同的语种

                $en_word=getNodeVal($word_node,"en");

                $zh_word=getNodeVal($word_node,"zh");

                //查询

                if($enword==$en_word && $zhword!=$zh_word){

                    //修改中文

                    $isEnter=true;

                    //获取zh节点

                    $zh=$word_node->getElementsByTagName("zh")->item(0);

                    $zh->nodeValue=$zhword;

                    $doc->save("words.xml");

                    echo "修改成功";

                    echo "<br/><a href='wordView.php'>返回继续操作</a>";

                }else if($enword!=$en_word && $zhword==$zh_word){

                    //修改因为

                    $isEnter=true;

                    $en=$word_node->getElementsByTagName("en")->item(0);

                    $en->nodeValue=$enword;

                    $doc->save("words.xml");

                    echo "修改成功";

                    echo "<br/><a href='wordView.php'>返回继续操作</a>";

                }

            }

            if(!$isEnter){

                echo "没有做任何修改";

                echo "<br/><a href='wordView.php'>返回继续操作</a>";

            }

        }else{

            echo "请输入需要修改的单词";

            echo "<br/><a href='wordView.php'>返回继续操作</a>";

            exit();

        }

    }

    //开源代码phpfensi.com

    //获取节点的文本值

    function getNodeVal(&$MyNode,$tagName){

        return $MyNode->getElementsByTagName($tagName)->item(0)->nodeValue;

    }

?>

words.xml,代码如下:

<?xml version="1.0" encoding="utf-8"?>

<words><word><en>boy</en><zh>男孩</zh></word><word><en>girl</en><zh>女孩</zh></word><word><en>fire</en><zh>火</zh></word><word><en>word</en><zh>词库</zh></word></words>