PHP解析xml的方法详解编程语言

PHP解析xml的方法

<?php 
/** 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); 
 
 } 
 
} 
 
?> 
 
<?php 
require "XMLParser.class.php"; 
 
$xmlfile = 'file.xml'; 
$xmlstring = '<?xml version="1.0" encoding="utf-8"?> 
<xmlroot> 
<status>1000</status> 
<info></info> 
<result><id>100</id> 
<name>fdipzone</name> 
<gender>1</gender> 
<age>28</age> 
</result> 
</xmlroot>'; 
 
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 '
'; 
?> 

原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/19090.html