Extract part of Xml document & convert it to Json in PHP -

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i need save part of following xml document , convert json - that, nodes "row" data in it.

<?xml version="1.0" encoding="utf-8"?>   <report>      <table>       <row device="mobile devices full browsers" cost="3940000" avgposition="2.0" avgcpc="3940000" ctr="100.00%" clicks="1" impressions="1" convertedclicks="0" searchterm="purple jeep near elgin sale" keyword="jeepdealership" campaignstate="enabled" adgroupid="7751248218" campaign="zeigler cdj_dealer campaign" campaignid="134270778"/>       <row device="mobile devices full browsers" cost="3930000" avgposition="1.0" avgcpc="3930000" ctr="100.00%" clicks="1" impressions="1" convertedclicks="0" searchterm="jeep wrangler rubicon 2015" keyword="jeepdealership" campaignstate="enabled" adgroupid="7751248218" campaign="zeigler cdj_dealer campaign" campaignid="134270778"/>       <row device="mobile devices full browsers" cost="2010000" avgposition="3.0" avgcpc="2010000" ctr="100.00%" clicks="1" impressions="1" convertedclicks="0" searchterm="altitute jeep cherokee" keyword="2015 jeep cherokee" campaignstate="enabled" adgroupid="18188246418" campaign="zeigler cdj_targeted campaign" campaignid="134270898"/>       <row device="mobile devices full browsers" cost="3990000" avgposition="1.0" avgcpc="3990000" ctr="100.00%" clicks="1" impressions="1" convertedclicks="0" searchterm="2012 jeep cherokee" keyword="2015 +jeep +cherokee" campaignstate="enabled" adgroupid="18188246418" campaign="zeigler cdj_targeted campaign" campaignid="134270898"/>     </table>

here code:

$doc = new domdocument; $doc->load('report.xml'); $node = $doc->documentelement; $subnodes = $node->getelementsbytagname('row'); $json = json_encode($node->savexml($subnodes));

here trying extract nodes of xml has "row", , convert json.

the error getting following:

fatal error: call undefined method domelement::savexml() in c:\php  \optima\adwords-examples-and-lib-8.1.0\examples\adwords\v201601\reporting \downloadcriteriareportwithawql.php on line 130

any direction appreciated.

$xml = simplexml_load_file('report.xml'); $json = json_decode(json_encode($xml->table))->row;

this give array of rows each rows data stored in json object.


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