PHP遍历解析XML成数组实现方法

public function parsexml($menus){
2         $result = array();
3         foreach($menus as $menu){
4             $tmparr = array();
5
6             //    处理空文本节点方式a
7             if( $menu->nodename !='#text'){
8
9                 //    检索子元素时跳跃过文本节点  - 处理空文本节点方式b
10                 for($i=1; $i<$menu->childnodes->length; $i+=2) {
11                     $anode = $menu->childnodes->item($i);
12
13                     //    子元素遍历
14                     $anode->childnodes->length > 1 ? $tmparr[$anode->nodename] = $this->parsexml( $anode->childnodes)
15                     : $tmparr[$anode->nodename] = $anode->nodevalue;
16                 }
17                 array_push($result,$tmparr);
18             }
19         }
20         return $result;
21     }
22
23
24
25         $doc = new domdocument();
26         $doc->load ( ‘a.xml’ );
27
28         //    第一种，有空文本节点
29         $menus = $doc->getelementsbytagname('sitemap')->item(0)->childnodes; 
30
31          //    第二种，明确指定标签，序列无空文本节点。但子元素仍然有空节点
32
33         $xpath = new domxpath($doc);
34         $query = "/sitemap/child::a";
35
36         $menus = $xpath->query($query);