在PHP中解析XML將返回SimpleXMLElement對象。接下來是什麼？

下面是我在嘗試解析從美國國會圖書館SRU服務返回的書籍搜索XML代碼時得到的回覆。如何查看[recordData] => SimpleXMLElement對象以獲取標題，創建者和發佈者信息？這是我第一次深入研究XML。任何幫助將不勝感激。這是我得到的迴應。我發現代碼來處理名稱空間，但無法弄清楚如何超越recordData標籤。在PHP中解析XML將返回SimpleXMLElement對象。接下來是什麼？

SimpleXMLElement Object 
     (
      [version] => 1.1 
      [numberOfRecords] => 1 
      [records] => SimpleXMLElement Object 
       (
        [record] => SimpleXMLElement Object 
         (
          [recordSchema] => info:srw/schema/1/dc-v1.1 
          [recordPacking] => xml 
          [recordData] => SimpleXMLElement Object 
           (
           ) 

          [recordPosition] => 1 
         ) 

       ) 


     $entry=simplexml_load_file('xml_data.xml'); 
     $namespaces = $entry->getNameSpaces(true); 
     $yr = $entry->children($namespaces['zs']); 
     print_r($yr); 


     <zs:searchRetrieveResponse xmlns:zs="http://www.loc.gov/zing/srw/"> 
     <zs:version>1.1</zs:version> 
     <zs:numberOfRecords>1</zs:numberOfRecords> 
     <zs:records> 
     <zs:record> 
     <zs:recordSchema>info:srw/schema/1/dc-v1.1</zs:recordSchema> 
     <zs:recordPacking>xml</zs:recordPacking> 
     <zs:recordData> 
     <srw_dc:dc xmlns:srw_dc="info:srw/schema/1/dc-schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="info:srw/schema/1/dc-schema http://www.loc.gov/standards/sru/resources/dc-schema.xsd"> 
     <title>My life /</title> 
     <creator>Clinton, Bill, 1946-</creator> 
     <type>text</type> 
     <publisher>New York : Knopf,</publisher> 
     <date>2004.</date> 
     <language>eng</language> 
     <description>Includes index.</description> 
     <subject>Clinton, Bill, 1946-</subject> 
     <subject>Clinton, Bill, 1946---Family.</subject> 
     <subject>Clinton family.</subject> 
     <subject>Presidents--United States--Biography.</subject> 
     <coverage>United States--Politics and government--1993-2001.</coverage> 
     <identifier> 
     http://www.loc.gov/catdir/samples/random051/2004107564.html 
     </identifier> 
     <identifier> 
     http://www.loc.gov/catdir/description/random051/2004107564.html 
     </identifier> 
     <identifier>URN:ISBN:0375414576</identifier> 
     </srw_dc:dc> 
     </zs:recordData> 
     <zs:recordPosition>1</zs:recordPosition> 
     </zs:record> 
     </zs:records> 
     </zs:searchRetrieveResponse>

來源

2011-09-26 Ali Haider Syed

見文檔：

http://us3.php.net/SimpleXMLElement

一個簡單的例子示出有：

foreach($xmldata->children() AS $child) 
{ 
    //run any query you want on the children.. they are also nodes. 
    $name = $child->getName(); 
}

來源

2011-09-26 19:38:24 Zak

在PHP中解析XML將返回SimpleXMLElement對象。接下來是什麼？

回答

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