php解析xml

项目中会遇到xml接口对接

xml请求

• xml参数封装

//表单
$item .='<item>
		<BUKRS>'.$v['bukrs'].'</BUKRS>
		<WERKS>'.$v['shop_id'].'</WERKS>
		<RECNNR>'.$v['recnnr'].'</RECNNR>
		<CONDTYPE>'.$zk_conds.'</CONDTYPE>
		<UNITPRICE>'.abs($amount).'</UNITPRICE>
		<BEGDA>'.$getData['time'].'</BEGDA>
		<ENDDA>'.$getData['time'].'</ENDDA>
		<ZPYMTMETH></ZPYMTMETH>
		<REMARK>'.$v['remark'].'</REMARK>
	</item>' ;

//表头	
$resques =  
'<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:sap-com:document:sap:rfc:functions">
	<soapenv:Header/>
	<soapenv:Body>
		<urn:ZTRE_DEDUCT_CREATE>
			<!--Optional:-->
			<BUKRS>'.array_unique(array_column($data, 'bukrs'))[0].'</BUKRS>
			<!--Optional:-->
			<WERKS>'.array_unique(array_column($data, 'shop_id'))[0].'</WERKS>
			<!--Optional:-->
			<REMARK>'.$getData['remark'].'</REMARK>
			<!--Optional:-->
			<CRTUSR>'.$getData['job_no'].'</CRTUSR>
			<!--Optional:-->
			<ITAB>
				<!--Zero or more repetitions:-->'
						    .$item.
						    '
		    </ITAB>
		</urn:ZTRE_DEDUCT_CREATE>
	</soapenv:Body>
</soapenv:Envelope>';

• 参数请求

/**
 * 请求接口
 *
 * @param  string $xml	  xml参数
 * @param  string $url	  接口地址
 * @param  string $action uri
 * @param  string $account  账号
 * @param  string $password 密码
 * @return [type]	[description]
 */
public function doSapXmlData($xml,$url,$action,$account='',$password=''){
	$account = !$account?$this->account:$account;
	$password = !$password?$this->password:$password;
	//获取soap对象
	$obj = new \SoapClient(null,array(
		'location' =>$url,
		'uri' =>$url,
		'login'=> $account,
		'password'=> $password));
	//发送请求
	$data = $obj->__doRequest($xml,config('sapPosData.action_data'),config('sapPosData.version'),1,0);
	// writeLog($data,Config('LOG_PATH').'async/','xml_request');
	return $data;
}

请求完成后返回参数应该是个对象

处理返回结果

• 解析表头

$domDocument = new \DOMDocument;
$domDocument->loadXML($resquesData);
$xml_node = $domDocument->getElementsByTagName("ZTRE_DEDUCT_CREATEResponse")->item(0);
foreach ($xml_node->childNodes as $kk => $vv) {
    if($vv->nodeName=='ITAB'){
        if($vv->childNodes->length>0){
            foreach($vv->childNodes as $k => $v){
                if($v->childNodes->length>0){
                    foreach ($v->childNodes as $key => $value) {
                        $resp[$vv->nodeName][$k][$value->nodeName] = $value->nodeValue;
                    }
                }else{
                    $resp[$vv->nodeName] = $vv->nodeValue;
                }
            }
        }else{
            $resp[$vv->nodeName] = $vv->nodeValue;
        }
    }else{
        $resp[$vv->nodeName] = $vv->nodeValue;
    }
}
if (empty($resp)) throw new \Exception("请求异常", 1);

• 解析表单

$xml_obj = simplexml_load_string($data);
$resp = json_decode(json_encode($xml_obj->xpath("//ITAB/item")),true);

结果就是$resp;