php的XML文件解释类应用实例_PHP教程

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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);

}

}

?>

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require "XMLParser.class.php";

$xmlfile = 'file.xml';

$xmlstring = '

1000

100

fdipzone

1

28

';

echo '

'; 

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

?>