Explain how PHP generates xml source code_PHP tutorial

PHP generates xml just like a tree, adding nodes one by one, you can add multiple child nodes under a parent node,
function madexml()
{
                                                                                                                                             ->modelCmsObj->getTemplate(2007); $arrTemp = explode("#",$strTempInfo);
array_shift($arrTemp);
$arrContents = array();
foreach($arrTemp as $k=>$v)
                                                                          
$objDom = new DOMDocument("1.0");
header("Content-Type: text/plain");
//Add elements and text nodes
$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); $text = $objDom-> ;createTextNode($v[1]); $text2 = $objDom->createTextNode($v[2]); $nextitem2->appendChild($text1);            $nextitem3- >appendChild($text2);
$nextitem1->appendChild($text);


simplexml_load_string把xml串转化为字符串
    $string =        
      
      
    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，
    /**
* Convert xml to array
* @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;  
   }

http://www.bkjia.com/PHPjc/486096.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/486096.htmlTechArticlephp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-get...