[php]php的xml文件读取XMLReader源代码范例

[php]php的xml文件读取XMLReader，[php]php的xml文件读取XMLReader源代码范例

<?php 
/** 
$xmlString = '<xml> 
        <persons count="10"> 
            <person username="username1" age="20">this is username1 description</person> 
            <person username="username2" age="20">this is username2 description</person> 
        </persons> 
    </xml>'; 
     
$mXmlTest = new XmlTest(); 
$dataList = $mXmlTest->parseXmlStr($xmlString); 
print_r($dataList); 
 
$xmlFile = './test.xml'; 
$dataList = $mXmlTest->parseXmlFile($xmlFile); 
print_r($dataList); 
 
 */ 
 
 
class XmlTest{ 
         
//     <xml> 
//         <persons count="10"> 
//             <person username="username1" age="20">this is username1 description</person> 
//             <person username="username2" age="20">this is username2 description</person> 
//         </persons> 
//     </xml> 
     
    /** 
     * 解析返回的XML文档 
     */ 
    public function parseXmlFile($xmlFile){ 
        $reader = new \XMLReader(); 
        $reader->open($xmlFile, 'UTF-8'); 
        $nodeName = ''; 
        $dataList = array(); 
        $data = array(); 
        while ($reader->read()){ 
            if($reader->nodeType == \XMLReader::ELEMENT){ 
                $nodeName = $reader->name; 
                if($nodeName=='persons'){ 
                    $count = $reader->getAttribute('count'); 
                    if(!($count>0)){ 
                        break; 
                    } 
                } 
                elseif($nodeName=='person'){ 
                    $data = array( 
                        'username'=>$reader->getAttribute('username'), 
                        'age'=>$reader->getAttribute('age'), 
                    ); 
                } 
            } 
            if($reader->nodeType == \XMLReader::TEXT && !empty($nodeName)){ 
                if($nodeName=='person'){ 
                    $data['description'] = strtolower($reader->value); 
                    $dataList[] = $data; 
                } 
            } 
        } 
        $reader->close(); 
        return $dataList; 
    } 
     
    /** 
     * 解析返回的XML文档 
     */ 
    public function parseXmlStr($xmlString){ 
        $reader = new \XMLReader(); 
        $reader->xml($xmlString,'UTF-8'); 
        $nodeName = ''; 
        $dataList = array(); 
        $data = array(); 
        while ($reader->read()){ 
            if($reader->nodeType == \XMLReader::ELEMENT){ 
                $nodeName = $reader->name; 
                if($nodeName=='persons'){ 
                    $count = $reader->getAttribute('count'); 
                    if(!($count>0)){ 
                        break; 
                    } 
                } 
                elseif($nodeName=='person'){ 
                    $data = array( 
                        'username'=>$reader->getAttribute('username'), 
                        'age'=>$reader->getAttribute('age'), 
                    ); 
                } 
            } 
            if($reader->nodeType == \XMLReader::TEXT && !empty($nodeName)){ 
                if($nodeName=='person'){ 
                    $data['description'] = strtolower($reader->value); 
                    $dataList[] = $data; 
                } 
            } 
        } 
        return $dataList; 
    } 
} 

 来源：http://www.cnblogs.com/xiaoyaogege/p/6212161.html