用PHP实现XML数据导入到Mysql

今天试图将之前用ASP写的XML导入MySQL的程序重新用PHP实现一遍

虽然之前我是学PHP的，但是没有接触到这块函数，所以对XML操作不是很熟练。

先附上XML代码：

<root>
    <area id="Main" name="直辖市" en="Main">
        <area id="Beijing" name="北京" en="Beijing">
            <city id="101010100" name="北京" en="Beijing" />
            <city id="101010200" name="海淀" en="Haidian" />
            <city id="101010300" name="朝阳" en="Chaoyang" />
            <city id="101010400" name="顺义" en="Shunyi" />
            <city id="101010500" name="怀柔" en="Huairou" />
            <city id="101010600" name="通州" en="Tongzhou" />
            <city id="101010700" name="昌平" en="Changping" />
            <city id="101010800" name="延庆" en="Yanqing" />
            <city id="101010900" name="丰台" en="Fengtai" />
            <city id="101011000" name="石景山" en="Shijingshan" />
            <city id="101011100" name="大兴" en="Daxing" />
            <city id="101011200" name="房山" en="Fangshan" />
            <city id="101011300" name="密云" en="Miyun" />
            <city id="101011400" name="门头沟" en="Mentougou" />
            <city id="101011500" name="平谷" en="Pinggu" />
        </area>
        <area id="Shanghai" name="上海" en="Shanghai">
            <city id="101020100" name="上海" en="Shanghai" />
            <city id="101020200" name="闵行" en="Minhang" />
            <city id="101020300" name="宝山" en="Baoshan" />
            <city id="101020500" name="嘉定" en="Jiading" />
            <city id="101020600" name="南汇" en="Nanhui" />
            <city id="101020700" name="金山" en="Jinshan" />
            <city id="101020800" name="青浦" en="Qingpu" />
            <city id="101020900" name="松江" en="Songjiang" />
            <city id="101021000" name="奉贤" en="Fengxian" />
            <city id="101021100" name="崇明" en="Chongming" />
            <city id="101021200" name="徐家汇" en="Xujiahui" />
            <city id="101021300" name="浦东" en="Pudong" />
        </area>
        <area id="Tianjin" name="天津" en="Tianjin">
            <city id="101030100" name="天津" en="Tianjin" />
            <city id="101030200" name="武清" en="Wuqing" />
            <city id="101030300" name="宝坻" en="Baodi" />
            <city id="101030400" name="东丽" en="Dongli" />
            <city id="101030500" name="西青" en="Xiqing" />
            <city id="101030600" name="北辰" en="Beichen" />
            <city id="101030700" name="宁河" en="Ninghe" />
            <city id="101030800" name="汉沽" en="Hangu" />
            <city id="101030900" name="静海" en="Jinghai" />
            <city id="101031000" name="津南" en="Jinnan" />
            <city id="101031100" name="塘沽" en="Tanggu" />
            <city id="101031200" name="大港" en="Dagang" />
            <city id="101031400" name="蓟县" en="Jixian" />
        </area>
        <area id="Chongqing" name="重庆" en="Chongqing">
            <city id="101040100" name="重庆" en="Chongqing" />
            <city id="101040200" name="永川" en="Yongchuan" />
            <city id="101040300" name="合川" en="Hechuan" />
            <city id="101040400" name="南川" en="Nanchuan" />
            <city id="101040500" name="江津" en="Jiangjin" />
            <city id="101040600" name="万盛" en="Wansheng" />
            <city id="101040700" name="渝北" en="Yubei" />
            <city id="101040800" name="北碚" en="Beibei" />
            <city id="101040900" name="巴南" en="Banan" />
            <city id="101041000" name="长寿" en="Changshou" />
            <city id="101041100" name="黔江" en="Qianjiang" />
            <city id="101041300" name="万州" en="Wanzhou" />
            <city id="101041400" name="涪陵" en="Fuling" />
            <city id="101041500" name="开县" en="Kaixian" />
            <city id="101041600" name="城口" en="Chengkou" />
            <city id="101041700" name="云阳" en="Yunyang" />
            <city id="101041800" name="巫溪" en="Wuxi" />
            <city id="101041900" name="奉节" en="Fengjie" />
            <city id="101042000" name="巫山" en="Wushan" />
            <city id="101042100" name="潼南" en="Tongnan" />
            <city id="101042200" name="垫江" en="Dianjiang" />
            <city id="101042300" name="梁平" en="Liangping" />
            <city id="101042400" name="忠县" en="Zhongxian" />
            <city id="101042500" name="石柱" en="Shizhu" />
            <city id="101042600" name="大足" en="Dazu" />
            <city id="101042700" name="荣昌" en="Rongchang" />
            <city id="101042800" name="铜梁" en="Tongliang" />
            <city id="101042900" name="璧山" en="Bishan" />
            <city id="101043000" name="丰都" en="Fengdu" />
            <city id="101043100" name="武隆" en="Wulong" />
            <city id="101043200" name="彭水" en="Pengshui" />
            <city id="101043300" name="綦江" en="Qijiang" />
            <city id="101043400" name="酉阳" en="Youyang" />
            <city id="101043600" name="秀山" en="Xiushan" />
        </area>
    </area>
</root>

开始处理数据，首先就是加载XML文档：

$xml=simplexml_load_file("./city.xml");//root

获得的是根节点root。

然后开始对数据进行循环

foreach($xml->children() AS $root)//provin
    {    $CityId='';
        $Provin='';
        $ProvinEN='';
        $City='';
        $CityEN='';
        if($root->attributes()=="Main")
        {
            foreach($root->children() AS $children1)//city
             {
                foreach($children1->attributes() AS $attr=>$val)
                {
                    if($attr=="name"){
                    $Provin=$val;
                    echo "省".$attr."='".$val."'"."<br>";
                    }
                    if($attr=="en"){
                    $ProvinEN=$val;
                    echo "省".$attr."='".$val."'"."<br>";
                    }
                }
                
                foreach($children1->children()->attributes() AS $attr=>$val)
                {
                    if($attr=="id"){
                    $CityId=$val;
                    echo $attr."='".$val."'"."<br>";}
                    if($attr=="name"){
                    $City=$val;
                    echo $attr."='".$val."'"."<br>";}
                    if($attr=="en"){
                    $CityEN=$val;
                    echo $attr."='".$val."'"."<br>";}
                }
                 $query="INSERT INTO citydb VALUES ('" . $CityId . "','" . $Provin . "','" . $City . "','" . $ProvinEN . "','" . $CityEN . "')";
                 $result=$db->query($query);
                 echo $query; 
             }
        }
        else
        {
             foreach($root->attributes() AS $attr=>$val)
             {
                if($attr=="name"){
                    $Provin=$val;
                    echo "省".$attr."='".$val."'"."<br>";
                    }
                    if($attr=="en"){
                    $ProvinEN=$val;
                    echo "省".$attr."='".$val."'"."<br>";
                    }
             }
             foreach($root->children() AS $children1)//city
             {
                foreach($children1->children()->attributes() AS $attr=>$val)
                {
                    if($attr=="id"){
                    $CityId=$val;
                    echo $attr."='".$val."'"."<br>";}
                    if($attr=="name"){
                    $City=$val;
                    echo $attr."='".$val."'"."<br>";}
                    if($attr=="en"){
                    $CityEN=$val;
                    echo $attr."='".$val."'"."<br>";}
                    
                }
                 $query="INSERT INTO citydb VALUES ('" . $CityId . "','" . $Provin . "','" . $City . "','" . $ProvinEN . "','" . $CityEN . "')";
                 $result=$db->query($query);
                 echo $query;                
             }
         }
    }

实现后，在phpmyadmin中发现了乱码

在网上找了一番之后，找到解决方法如下

@ $db=new mysqli('localhost','root','123456','test');
    $db->set_charset("utf8");//设置编码

$db->set_charset("utf8")用于设置编码，设置完后，就不会出现乱码问题