php 如何解析这样一个xml文件？

<code><?xml version="1.0" encoding="utf-8"?>
<order deliveryno="PH00127495JP">
    <status>
        <state statedate="2016-06-28 11:37:47" statemessage="亲，您的包裹已入库完成，祝您海淘愉快！" stateoperator="PH002JP"></state>
        <state statedate="2016-06-29 12:32:13" statemessage="亲，您的包裹已安排极速转运！" stateoperator="PH002JP"></state>
        <state statedate="2016-07-02 09:16:58" statemessage="亲，您的包裹已到达HK分拨中心，等待清关中！" stateoperator="PH005CN"></state>
        <state statedate="2016-07-04 09:32:16" statemessage="亲，您的包裹已清关完毕！" stateoperator="PH006CN"></state>
    </status>
</order>
//以上xml内容如何获取时间等信息，我试了simplexml_load_string函数，解析失败。
--------------------------------------------------------------------------------
还有就是上面是print_r输出的内容，而var_dump输出的是这样的

    D:\WWW\demo\demo\order.php:24:string '<?xml version="1.0" encoding="utf-8"?>
<Order DeliveryNo="PH00127495JP">
    <Status>
        <State StateDate="2016-06-28 11:37:47" StateMessage="亲，您的包裹已入库完成，祝您海淘愉快！" StateOperator="PH002JP" />
        <State StateDate="2016-06-29 12:32:13" StateMessage="亲，您的包裹已安排极速转运！" StateOperator="PH002JP" />
        <State Stat'... (length=877)
//simplexml_load_string函数直接报错，说Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, '<' not found in D:\WWW\demo\demo\order.php on line 36
跪求大神赐教！！
---------------------------------------------------------------------------
    这些是php处理的代码。麻烦大神了。
 $delivery = trim($_POST['delivery']);
$t = $_POST['t'];
$encrypt = $_POST['encrypt'];
$Source = trim($delivery.$encrypt.$t);

    $Source = strtoupper(md5($Source));
    //$Source = trim($_POST['Source']);
    //$Source = strtoupper(md5($Source));
    $data['delivery'] = $delivery;
    $data['t'] = $t;
    $data['encrypt'] = $encrypt;
    $data['Source'] = $Source;
    
    $url = 'http://www.ipehua.com/IWendaAPI/IGetDeliveryAPI.ashx';
    //$xml_content = send_post($url,$data);
    
    $curl = curl_init();
    
    curl_setopt_array($curl, Array(
        CURLOPT_URL            => $url,
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_ENCODING       => 'UTF-8',
        CURLOPT_POSTFIELDS     => $data
    ));
    
    $xml_content = curl_exec($curl);
    curl_close($curl);</code>

回复内容：

<code><?xml version="1.0" encoding="utf-8"?>
<order deliveryno="PH00127495JP">
    <status>
        <state statedate="2016-06-28 11:37:47" statemessage="亲，您的包裹已入库完成，祝您海淘愉快！" stateoperator="PH002JP"></state>
        <state statedate="2016-06-29 12:32:13" statemessage="亲，您的包裹已安排极速转运！" stateoperator="PH002JP"></state>
        <state statedate="2016-07-02 09:16:58" statemessage="亲，您的包裹已到达HK分拨中心，等待清关中！" stateoperator="PH005CN"></state>
        <state statedate="2016-07-04 09:32:16" statemessage="亲，您的包裹已清关完毕！" stateoperator="PH006CN"></state>
    </status>
</order>
//以上xml内容如何获取时间等信息，我试了simplexml_load_string函数，解析失败。
--------------------------------------------------------------------------------
还有就是上面是print_r输出的内容，而var_dump输出的是这样的

    D:\WWW\demo\demo\order.php:24:string '<?xml version="1.0" encoding="utf-8"?>
<Order DeliveryNo="PH00127495JP">
    <Status>
        <State StateDate="2016-06-28 11:37:47" StateMessage="亲，您的包裹已入库完成，祝您海淘愉快！" StateOperator="PH002JP" />
        <State StateDate="2016-06-29 12:32:13" StateMessage="亲，您的包裹已安排极速转运！" StateOperator="PH002JP" />
        <State Stat'... (length=877)
//simplexml_load_string函数直接报错，说Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, '<' not found in D:\WWW\demo\demo\order.php on line 36
跪求大神赐教！！
---------------------------------------------------------------------------
    这些是php处理的代码。麻烦大神了。
 $delivery = trim($_POST['delivery']);
$t = $_POST['t'];
$encrypt = $_POST['encrypt'];
$Source = trim($delivery.$encrypt.$t);

    $Source = strtoupper(md5($Source));
    //$Source = trim($_POST['Source']);
    //$Source = strtoupper(md5($Source));
    $data['delivery'] = $delivery;
    $data['t'] = $t;
    $data['encrypt'] = $encrypt;
    $data['Source'] = $Source;
    
    $url = 'http://www.ipehua.com/IWendaAPI/IGetDeliveryAPI.ashx';
    //$xml_content = send_post($url,$data);
    
    $curl = curl_init();
    
    curl_setopt_array($curl, Array(
        CURLOPT_URL            => $url,
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_ENCODING       => 'UTF-8',
        CURLOPT_POSTFIELDS     => $data
    ));
    
    $xml_content = curl_exec($curl);
    curl_close($curl);</code>

<code><?php $xml = '<?xml version="1.0" encoding="utf-8"?>
<order deliveryno="PH00127495JP">
    <status>
        <state statedate="2016-06-28 11:37:47" statemessage="亲，您的包裹已入库完成，祝您海淘愉快！" stateoperator="PH002JP"></state>
        <state statedate="2016-06-29 12:32:13" statemessage="亲，您的包裹已安排极速转运！" stateoperator="PH002JP"></state>
        <state statedate="2016-07-02 09:16:58" statemessage="亲，您的包裹已到达HK分拨中心，等待清关中！" stateoperator="PH005CN"></state>
        <state statedate="2016-07-04 09:32:16" statemessage="亲，您的包裹已清关完毕！" stateoperator="PH006CN"></state>
    </status>
</order>
';

$xml = simplexml_load_string($xml);


$xml = json_decode(json_encode($xml),TRUE);

echo "DeliveryNo=>",$xml['@attributes']['DeliveryNo'],"<br>";

$state = $xml['Status']['State'];

foreach ($state as $key => $value) {
    print_r($value['@attributes']);
    echo "<br>";
}</code>

PHP 5.6.22 通过。

https://3v4l.org/JZ3UP

<code>$xml_string = '<?xml version="1.0" encoding="utf-8"?>
<order deliveryno="PH00127495JP">
    <status>
        <state statedate="2016-06-28 11:37:47" statemessage="亲，您的包裹已入库完成，祝您海淘愉快！" stateoperator="PH002JP"></state>
        <state statedate="2016-06-29 12:32:13" statemessage="亲，您的包裹已安排极速转运！" stateoperator="PH002JP"></state>
        <state statedate="2016-07-02 09:16:58" statemessage="亲，您的包裹已到达HK分拨中心，等待清关中！" stateoperator="PH005CN"></state>
        <state statedate="2016-07-04 09:32:16" statemessage="亲，您的包裹已清关完毕！" stateoperator="PH006CN"></state>
    </status>
</order>';
libxml_disable_entity_loader(true);
$obj = simplexml_load_string($xml_string, 'SimpleXMLElement', LIBXML_NOCDATA);

print_r($obj);

echo $obj->attributes()->DeliveryNo;</code>

PHP处理XML有几种方式，DOM、XMLReader/Writer、XSL，建议你用后两种，DOM相对耗内存。

<code><?php $a = <<<EOF
<?xml version="1.0" encoding="utf-8"?>
<order deliveryno="PH00127495JP">
    <status>
        <state statedate="2016-06-28 11:37:47" statemessage="亲，您的包裹已入库完成，祝您海淘愉快！" stateoperator="PH002JP"></state>
        <state statedate="2016-06-29 12:32:13" statemessage="亲，您的包裹已安排极速转运！" stateoperator="PH002JP"></state>
        <state statedate="2016-07-02 09:16:58" statemessage="亲，您的包裹已到达HK分拨中心，等待清关中！" stateoperator="PH005CN"></state>
        <state statedate="2016-07-04 09:32:16" statemessage="亲，您的包裹已清关完毕！" stateoperator="PH006CN"></state>
    </status>
</order>
EOF;
$xml = simplexml_load_string($a);
$json = json_encode($xml);
$array = json_decode($json,TRUE);
$states = $array['Status']['State'];
foreach($states as $state) {
    echo $state['@attributes']['StateMessage'],' 操作员：',$state['@attributes']['StateOperator'],'，',$state['@attributes']['StateDate'],PHP_EOL;
}
</code>

输出如下：

<code>亲，您的包裹已入库完成，祝您海淘愉快！ 操作员：PH002JP，2016-06-28 11:37:47
亲，您的包裹已安排极速转运！ 操作员：PH002JP，2016-06-29 12:32:13
亲，您的包裹已到达HK分拨中心，等待清关中！ 操作员：PH005CN，2016-07-02 09:16:58
亲，您的包裹已清关完毕！ 操作员：PH006CN，2016-07-04 09:32:16</code>