Detailed explanation of steps to dynamically create XML documents with PHP

This time I will bring you a detailed explanation of the steps for dynamically creating XML documents with PHP. What are the precautions for dynamically creating XML documents with PHP? Here are practical cases, let’s take a look.

1. Code

conn.php

<?php
$id=mysql_connect("localhost","root","root") or die(&#39;数据库连接失败:&#39; . mysql_error());
if(mysql_select_db("db_database26",$id))
 echo "";
 else
 echo (&#39;数据库错误&#39; . mysql_error());
mysql_query("set names gb2312");
?>

index.php

<a
ref="rss.xml">查看rss.xml文件中的内容</a>
<?php
include_once("conn/conn.php");
include_once("rss.php");
?>

rss.php

<?php
$self=$_SERVER[&#39;HTTP_REFERER&#39;];
$u=$_SERVER[&#39;HTTP_HOST&#39;];
$url="http://"."$u";
$date_time=date("Y-m-d H:i:s");
$dom = new DomDocument(&#39;1.0&#39;,&#39;gb2312&#39;);           //创建DOM对象
$object = $dom->createElement(&#39;rss&#39;);            //创建根节点rss
$dom->appendChild($object);                 //将创建的根节点添加到dom对象中
  $type1 = $dom->createAttribute(&#39;xmlns:rdf&#39;);     //创建一个节点属性xmlns:rdf
  $object->appendChild($type1);              //将属性追加到rss根节点中
    $type1_value = $dom->createTextNode(&#39;http://www.w3.org/1999/02/22-rdf-syntax-ns#&#39;); //创建一个属性值
    $type1->appendChild($type1_value);                //将属性值赋给属性xmlns:rdf
  $type2 = $dom->createAttribute(&#39;xmlns:dc&#39;);             //创建一个节点属性xmlns:dc
  $object->appendChild($type2);              //将属性追加到rss根节点中
    $type2_value = $dom->createTextNode(&#39;http://purl.org/dc/elements/1.1/&#39;); //创建一个属性值
    $type2->appendChild($type2_value);                //将属性值赋给属性xmlns:dc
  $type3 = $dom->createAttribute(&#39;xmlns:taxo&#39;);              //创建一个节点属性xmlns:taxo
  $object->appendChild($type3);              //将属性追加到rss根节点中
    $type3_value = $dom->createTextNode(&#39;http://purl.org/rss/1.0/modules/taxonomy/&#39;); //创建一个属性值
    $type3->appendChild($type3_value);                //将属性值赋给属性xmlns:taxo
  $type4 = $dom->createAttribute(&#39;version&#39;);              //创建一个节点属性version
  $object->appendChild($type4);              //将属性追加到rss根节点中
    $type4_value = $dom->createTextNode(&#39;2.0&#39;);   //创建一个属性值
    $type4->appendChild($type4_value);          //将属性值赋给属性version
  $channel = $dom->createElement(&#39;channel&#39;);              //创建节点channel
  $object->appendChild($channel);                 //将节点channel追加到根节点rss下
    $title = $dom->createElement(&#39;title&#39;);            //创建节点title
    $channel->appendChild($title);                //将节点追加到channel节点下
      $title_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,&#39;明日科技&#39;)); //创建元素值
      $title->appendChild($title_value);            //将值赋给title节点
    $link = $dom->createElement(&#39;link&#39;);         //创建节点link
    $channel->appendChild($link);              //将节点追加到channel节点下
      $link_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,&#39;http://www.mingrisoft.com&#39;));//创建元素值
      $link->appendChild($link_value);           //将值赋给link节点
    $description = $dom->createElement(&#39;description&#39;);          //创建节点description
    $channel->appendChild($description);           //将节点追加到channel节点下
      $description_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,&#39;明日科技&#39;));  //创建元素值
      $description->appendChild($description_value);              //将值赋给description节点
    $dc_creator = $dom->createElement(&#39;dc:creator&#39;);         //创建节点dc:creator
    $channel->appendChild($dc_creator);           //将节点追加到channel节点中
      $dc_creator_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,&#39;http://www.mingrisoft.com&#39;));//创建元素值
      $dc_creator->appendChild($dc_creator_value);           //将值赋给dc:creator节点
$sql=mysql_query("select * from tb_rss_database order by tb_rss_id desc");   //从数据库中读取数据
while($myrow=mysql_fetch_array($sql)){       //循环输出数据库中数据
    $item = $dom->createElement(&#39;item&#39;);     //创建节点item
    $object->appendChild($item);             //将item追加到channel节点下
      $item_title = $dom->createElement(&#39;title&#39;);         //创建title节点
      $item->appendChild($item_title);           //将节点追加到item节点下
      $item_link = $dom->createElement(&#39;link&#39;);          //创建link节点
      $item->appendChild($item_link);           //将节点追加到item节点下
      $item_description = $dom->createElement(&#39;description&#39;);   //创建description节点
      $item->appendChild($item_description);            //将节点追加到item节点中
      $item_pubDate = $dom->createElement(&#39;pubDate&#39;);       //创建节点pubDate
      $item->appendChild($item_pubDate);            //将节点追加到item节点下
        $title_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,"$myrow[tb_rss_subject]"));  //创建元素值
        $item_title->appendChild($title_value);           //将值赋给title节点
        $link_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,"$url/tm/sl/22/02/look_content.php?lmbs=$myrow[tb_rss_id]"));//创建元素值
        $item_link->appendChild($link_value);            //将值赋给link节点
        $description=substr($myrow[tb_rss_content],0,80);      //截取该字段中的前80个字符
        $description_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,"$description"));//创建元素值
        $item_description->appendChild($description_value);     //将值赋给description节点
        $pubDate_value = $dom->createTextNode(iconv(&#39;gb2312&#39;,&#39;utf-8&#39;,"$date_time"));//创建元素值
        $item_pubDate->appendChild($pubDate_value);           //将值赋给pubDate节点
}
$modi = $dom->saveXML();         //生成xml文档
file_put_contents(&#39;Rss.xml&#39;,$modi);     /* 将对象保存到Rss.xml文档中 */
?>

2. Operation results

I believe you have mastered the method after reading the case in this article, and more How exciting, please pay attention to other related articles on php Chinese website!

Recommended reading:

Detailed explanation of the use of PHP decorator mode

thinkPHP framework automatic filling principle and usage detailed explanation

The above is the detailed content of Detailed explanation of steps to dynamically create XML documents with PHP. For more information, please follow other related articles on the PHP Chinese website!