Question

我希望只将下面元素的内容解析为自己的XML文档，但我不确定要使用正确的PHP方法。 boxb.php中的XML数据无法修改。

EX：解析代码：

<?php
include 'boxb.php';
$boxb = new SimpleXMLElement($xmlstr);
$boxb->ad[0]->content;
echo $boxb->ad[0]->content;
?>

boxb.php包含以下内容：

<?php
$xmlstr = <<<XML
<boxb>
   <ad type="agnostic_template">
      <url><![CDATA[http://ads.cookie.com/8/redir/1db04901-225e-11e4-86f3-bc305bf4914b/0/632361]]></url>
      <track />
      <content>
         <VAST version="2.0">
            <Ad id="228">
               <InLine>
                  <AdSystem version="4.11.0-10">LiveRail</AdSystem>
                  <AdTitle><![CDATA[TV Overlay PNG]]></AdTitle>
                  <Description />
                  <Error><![CDATA[http://t4.liverail.com/?metric=error&erc=[ERRORCODE]&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=&redirect=]]></Error>
                  <Impression id="LR"><![CDATA[http://t4.liverail.com/?metric=impression&cofl=0&flid=0&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=29&y=29&xy=9dae&z2=0.00000]]></Impression>
                  <Impression id="QC"><![CDATA[http://pixel.quantserve.com/pixel/p-d05JkuPGiy-jY.gif?r=6662]]></Impression>
                  <Impression id="CS"><![CDATA[http://b.scorecardresearch.com/p?c1=1&c2=9864668&c3=1331&c4=&c5=09]]></Impression>
                  <Impression><![CDATA[http://load.exelator.com/load/?p=104&g=440&j=0]]></Impression>
                  <Impression><![CDATA[http://navdmp.com/usr?vast=http%3A%2F%2Ft4.liverail.com%2F%3Fmetric%3Dmsync%26p%3D78]]></Impression>
                  <Impression><![CDATA[http://pixel.tapad.com/idsync/ex/receive?partner_id=LIVERAIL&partner_device_id=97838239447]]></Impression>
                  <Impression><![CDATA[http://t4.liverail.com/?metric=rsync&p=3016&redirect=http%3A%2F%2Fliverail2waycm-atl.netmng.com%2Fcm%2F%3Fredirect%3Dhttp%253A%252F%252Ft4.liverail.com%252F%253Fmetric%253Dcsync%2526p%253D3016%2526s%253D(NM-UserID)]]></Impression>
                  <Impression><![CDATA[http://t4.liverail.com/?metric=rsync&p=3017&redirect=http%3A%2F%2Fm.xp1.ru4.com%2Factivity%3F_o%3D62795%26_t%3Dcm_rail]]></Impression>
                  <Impression><![CDATA[http://n.us1.dyntrk.com/adx/lr/sync_lr.php?lrid=97838239447]]></Impression>
                  <Creatives>
                     <Creative sequence="1" id="8455">
                        <NonLinearAds>
                           <NonLinear width="300" height="60">
                              <StaticResource creativeType="image/png"><![CDATA[http://cdn.liverail.com/adasset/228/8455/overlay.png]]></StaticResource>
                              <NonLinearClickThrough><![CDATA[http://t4.liverail.com/?metric=clickthru&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=&redirect=http%3A%2F%2Fwww.liverail.com]]></NonLinearClickThrough>
                           </NonLinear>
                           <TrackingEvents>
                              <Tracking event="acceptInvitation"><![CDATA[http://t4.liverail.com/?metric=accept&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=]]></Tracking>
                              <Tracking event="collapse"><![CDATA[http://t4.liverail.com/?metric=minimize&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=]]></Tracking>
                           </TrackingEvents>
                        </NonLinearAds>
                     </Creative>
                     <Creative sequence="1" id="8455">
                        <CompanionAds>
                           <Companion width="300" height="60">
                              <StaticResource creativeType="image/jpeg"><![CDATA[http://cdn.liverail.com/adasset/228/8455/300x60.jpg]]></StaticResource>
                              <TrackingEvents>
                                 <Tracking event="creativeView"><![CDATA[http://t4.liverail.com/?metric=companion&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=]]></Tracking>
                              </TrackingEvents>
                              <CompanionClickThrough><![CDATA[http://t4.liverail.com/?metric=cclickthru&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=&redirect=http%3A%2F%2Fwww.liverail.com]]></CompanionClickThrough>
                           </Companion>
                           <Companion width="300" height="250">
                              <StaticResource creativeType="image/jpeg"><![CDATA[http://cdn.liverail.com/adasset/228/8455/300x250.jpg]]></StaticResource>
                              <TrackingEvents>
                                 <Tracking event="creativeView"><![CDATA[http://t4.liverail.com/?metric=companion&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=]]></Tracking>
                              </TrackingEvents>
                              <CompanionClickThrough><![CDATA[http://t4.liverail.com/?metric=cclickthru&pos=1&coid=135&pid=1331&nid=1331&oid=228&olid=2281331&cid=8455&tpcid=&vid=&amid=&cc=default&pp=&vi=0&vv=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=7&adt=0&did=&buid=&scen=&mca=&mma=&mct=0&url=http%3A%2F%2Fwww.iab.net%2Fguidelines%2F508676%2Fdigitalvideo%2Fvast%2Fvast_xml_samples&trid=53ea9957dc20a5.06241648&bidf=0.00000&bids=0.00000&bidt=1&bidh=0&bidlaf=0&cb=6662.66.104.228.162.0&ver=1&w=&wy=&x=&y=&xy=&redirect=http%3A%2F%2Fwww.liverail.com]]></CompanionClickThrough>
                           </Companion>
                        </CompanionAds>
                     </Creative>
                  </Creatives>
                  <Extensions />
               </InLine>
            </Ad>
         </VAST>
         <!--  321 US_NEWJERSEY_NEWYORK_METUCHEN 08840  -->
      </content>
   </ad>
</boxb>
XML;
?>

Answer 1

如果您想获取XML数据，请使用asXML()，

echo $boxb->ad[0]->content->asXML();

如果您想创建自己的XML文档，可以使用例如

$myXML = new SimpleXMLElement($boxb->ad[0]->content->asXML());
echo $myXML->asXML();

哪个会回应，

<!--?xml version="1.0"?-->
<content>
    ...
</content>

Answer 2

<?php
include 'boxb.php';
// Load string and parse as XML
$boxb = simplexml_load_string($xmlstr);
// Extract "content" element from loaded XML
$content = $boxb->ad->content;
// Convert extracted info into XML
$new_xml = $content->asXML();
// Send a header tag to the browser, stating that this info is XML
header('Content-type: application/XML');
// Print the actual XML
echo $new_xml;
?>

PHP - 解析XML元素中包含的XML和输出到XML文档中的XML

2 个答案: