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讲解PHP生成xml源代码_PHP教程

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Jul 13, 2016 pm 05:41 PM

phpxml一樣加可添加原始碼父親產生節點講解

php生成xml就像树一样，逐个添加节点，可以在一个父节点下添加多个子节点，
function madexml()
{
        //获取模板信息
        $strTempInfo = $this->modelCmsObj->getTemplate(2007);
        $arrTemp = explode("#",$strTempInfo);
        array_shift($arrTemp);
        $arrContents = array();
        foreach($arrTemp as $k=>$v)
        {
               $arrContents[$k]=explode(",",$v);
        }
        //解析为xml文件
        $objDom = new DOMDocument("1.0");
        header("Content-Type: text/plain");
        //添加元素和文本节点
        $root = $objDom->createElement("recommend");
        $objDom->appendChild($root);
        foreach($arrContents as $k=>$v)
        {
                $item = $objDom->createElement("entry");
                $root->appendChild($item);
                $nextitem1 = $objDom->createElement("simgurl");
                $nextitem2 = $objDom->createElement("imgurl");
                $nextitem3 = $objDom->createElement("fileurl");
                $item->appendChild($nextitem1);
                $item->appendChild($nextitem2);
                $item->appendChild($nextitem3);
                $text1 = $objDom->createTextNode($v[0]);
                $text = $objDom->createTextNode($v[1]);
                $text2 = $objDom->createTextNode($v[2]);
                $nextitem2->appendChild($text1);
                $nextitem3->appendChild($text2);
                $nextitem1->appendChild($text);
       }
       echo $objDom->saveXML();
}

simplexml_load_string把xml串转化为字符串
   $string =

   Forty What?
   Joe
   Jane

   I know thats the answer -- but whats the question?


   XML;
   $xml = simplexml_load_string($string);
   var_dump($xml);
?>

   This script will display:
   SimpleXMLElement Object
     (
     [title] => Forty What?
     [from] => Joe
     [to] => Jane
     [body] =>
      I know thats the answer -- but whats the question?
   )


如果想把xml转换为数组，先转换为字符串含有键值的字符串，然后再进行循环就可以成为数组了，
    /**
     * xml转换为数组
     * @param unknown_type $xml
     */
    private function xml_to_array($xml)
    {
              $array = (array)(simplexml_load_string($xml,SimpleXMLElement, LIBXML_NOCDATA));
              foreach ($array as $key=>$item){
                $array[$key] = $this->struct_to_array((array)$item);
             }
             return $array;
   }

   private function struct_to_array($item) {
             if(!is_string($item)) {
               $item = (array)$item;
               foreach ($item as $key=>$val){
                 $item[$key] = self::struct_to_array($val);
               }
             }
             return $item;
   }