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php的XML文件解释类应用实例

WBOY
WBOYOriginal
2016-06-13 09:25:13947browse

php的XML文件解释类应用实例

 XMLParser.class.php类文件如下:

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/** XML 文件分析类 

*  Date:  2013-02-01 

*  Author: fdipzone 

*  Ver:  1.0 

*  func: 

*  loadXmlFile($xmlfile)   读入xml文件输出Array 

*  loadXmlString($xmlstring) 读入xmlstring 输出Array 

*/ 

   

class XMLParser{ 

   

  /** 读取xml文件 

  * @param String $xmlfile 

  * @return Array 

  */ 

  public function loadXmlFile($xmlfile){ 

    // get xmlfile content 

    $xmlstring = file_exists($xmlfile)? file_get_contents($xmlfile) : ''; 

    // parser xml 

    list($flag, $data) = $this->parser($xmlstring); 

    return $this->response($flag, $data); 

  } 

   

  /** 读取xmlstring 

  * @param String $xmlstring 

  * @return Array 

  */ 

  public function loadXmlString($xmlstring){ 

    // parser xml 

    list($flag, $data) = $this->parser($xmlstring); 

    return $this->response($flag, $data); 

  } 

   

  /** 解释xml内容 

  * @param  String $xmlstring 

  * @return Array 

  */ 

  private function parser($xmlstring){ 

    $flag = false; 

    $data = array(); 

    // check xml format 

    if($this->checkXmlFormat($xmlstring)){ 

      $flag = true; 

      // xml to object 

      $data = simpleXML_load_string($xmlstring, 'SimpleXMLElement', LIBXML_NOCDATA); 

      // object to array 

      $this->objectToArray($data); 

    } 

    return array($flag, $data); 

  } 

   

  /** 检查xml格式是否正确 

  * @param String $xmlstring 

  * @return boolean 

  */ 

  private function checkXmlFormat($xmlstring){ 

    if($xmlstring==''){ 

      return false; 

    } 

    $xml_parser_obj = xml_parser_create(); 

   

    if(xml_parse_into_struct($xml_parser_obj, $xmlstring, $vals, $indexs)===1){ // 1:success 0:fail 

      return true; 

    }else{ 

      return false; 

    } 

  } 

   

  /** object 转 Array 

  * @param object $object 

  * @return Array 

  */ 

  private function objectToArray(&$object){ 

       

    $object = (array)$object; 

       

    foreach($object as $key => $value){ 

      if($value==''){ 

        $object[$key] = ""; 

      }else{ 

        if(is_object($value) || is_array($value)){ 

          $this->objectToArray($value); 

          $object[$key] = $value; 

        } 

      } 

    } 

  } 

   

  /** 输出返回 

  * @param boolean $flag true:false 

  * @param Array  $data 转换后的数据 

  * @return Array 

  */ 

  private function response($flag=false, $data=array()){ 

    return array($flag, $data); 

  } 

?>

Demo示例程序如下:

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require "XMLParser.class.php"; 

   

$xmlfile = 'file.xml'; 

$xmlstring = ' 

 

1000 

 

100 

fdipzone 

1 

28 

 

'; 

echo '

'; 
            <p>$xml_parser = new XMLParser(); </p>
            <p>echo "response xmlfile\r\n"; </p>
            <p>list($flag, $xmldata) = $xml_parser->loadXmlFile($xmlfile); </p>
            <p>if($flag){ </p>
            <p>  print_r($xmldata); </p>
            <p>} </p>
            <p>echo "response xmlstring\r\n"; </p>
            <p>list($flag, $xmldata) = $xml_parser->loadXmlString($xmlstring); </p>
            <p>if($flag){ </p>
            <p>  print_r($xmldata); </p>
            <p>} </p>
            <p>echo '</p>
'; 

?>

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