嵌套在数据中的Xml php属性

Question

我正在使用以下xml

<?xml version="1.0" encoding="UTF-8"?>
<ns2:worldmate-parsing-result xmlns:ns2="http://www.worldmate.com/schemas/worldmate-api-v1.xsd" request-id="100793160" received="2014-12-27T16:34:42.000Z">
    <status>SUCCESS</status>
    <error-msg>An itinerary confirmation e-mail was parsed successfully</error-msg>
    <headers>
        <header value="multipart/alternative;  boundary=&quot;Apple-Mail=_62E5BF7A-C482-4FE0-8F43-15613E46D5FD&quot;" name="Content-type" />
        <header value="&lt;xxxxx@me.com&gt;" name="Return-Path" />
        <header value="rule=notspam policy=default score=0 spamscore=0  suspectscore=3 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0  reason=mlx scancount=1 engine=7.0.1-1412080000 definitions=main-1412270180" name="X-Proofpoint-Spam-Details" />
    </headers>
    <end-user-emails>
        <user email="yyyyy@me.com" />
    </end-user-emails>
    ....
 </ns2:worldmate-parsing-result>

我试图访问xml中的以下数据：

xxxxx@me.com
yyyyy@me.com

我试图使用以下代码访问第二个电子邮件地址。

$endus='end-user-emails';
$endUserEmails=$xml->$endus->attributes()->{'user'};
echo $endUserEmails;

不知道为什么，但这迫使我使用变量名，如果我使用破折号，我会得到错误。

Answer 1

您可以使用XML DOM Parser查询XML：

$doc = new DOMDocument;
$doc->Load('file.xml');
$xpath = new DOMXPath($doc);
$entries = $xpath->query('//end-user-emails/user/@email');
foreach ($entries as $entry) {
    echo $entry->nodeValue; //Or do something else with the email value
}

关键是查询：

//end-user-emails/user/@email

这意味着：“对于标记<end-user-emails>__下的每个标记__，返回email属性。”

对于第一封电子邮件，可以用以下方式替换：

//headers/header/@value

然后去除<和&gt；

示例：(与php -a一起)

$ php -a交互模式启用

php > $doc = new DOMDocument();
php > $xmldoc = '<?xml version="1.0" encoding="UTF-8"?>
php ' <ns2:worldmate-parsing-result xmlns:ns2="http://www.worldmate.com/schemas/worldmate-api-v1.xsd" request-id="100793160" received="2014-12-27T16:34:42.000Z">
php '     <status>SUCCESS</status>
php '     <error-msg>An itinerary confirmation e-mail was parsed successfully</error-msg>
php '     <headers>
php '         <header value="multipart/alternative;  boundary=&quot;Apple-Mail=_62E5BF7A-C482-4FE0-8F43-15613E46D5FD&quot;" name="Content-type" />
php '         <header value="&lt;xxxxx@me.com&gt;" name="Return-Path" />
php '         <header value="rule=notspam policy=default score=0 spamscore=0  suspectscore=3 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0  reason=mlx scancount=1 engine=7.0.1-1412080000 definitions=main-1412270180" name="X-Proofpoint-Spam-Details" />
php '     </headers>
php '     <end-user-emails>
php '         <user email="yyyyy@me.com" />
php '     </end-user-emails>
php '  </ns2:worldmate-parsing-result>';
php > $doc->loadXML($xmldoc);
php > $entries = $xpath->query('//end-user-emails/user/@email');
php > foreach ($entries as $entry) {
php { echo $entry->nodeValue."\n";
php { }
yyyyy@me.com

Answer 2

使用简单的xml (加载字符串或文件)，您可以通过以下方式访问电子邮件：

$a = 'end-user-emails';
$xml = simplexml_load_string($str);

echo ($xml->$a->user->attributes()->email);

您需要指定值所在的标记，然后调用属性的名称