PHP读取XML文件数据

1 <?xml version="1.0" encoding="UTF-8"?>
2 <node>
3     <id>10001</id>
4     <userName>admin</userName>
5     <node>
6         <token>secretKey</token>
7     </node>
8 </node>

 1 <?php
 2     $file = ‘test.xml‘;
 3     $xml_object=simplexml_load_file($file); //将XML中的数据,读取到数组对象中
 4     var_dump($xml_object);
 5     //全部对象结果集合
 6     //object(SimpleXMLElement)#1 (3) { ["id"]=> string(5) "10001" ["userName"]=> string(5) "admin" ["node"]=> object(SimpleXMLElement)#2 (1) { ["token"]=> string(9) "secretKey" } }
 7     echo ‘<pre>‘;
 8 
 9     var_dump($xml_object->id);
10     //$xml_object->id对象值
11     //object(SimpleXMLElement)#2 (1) {[0]=>string(5) "10001"}
12     echo ‘<pre>‘;
13 
14     echo($xml_object->id);
15     //$xml_object->id对象值
16     //10001 (echo强制转换结果)
17     echo ‘<pre>‘;
18 
19     //注意代码中获取真正参数得值需要我们做强制转换处理
20     var_dump((string)$xml_object->id);
21     //$xml_object->id对象值
22     //string(5) "10001"
23     echo ‘<pre>‘;
24 
25     var_dump((string)$xml_object->node->token);
26     //$xml_object->node->token对象值
27     //string(9) "secretKey"