PHP XML Parse Example

The PHP DOMDocument Class can be used to parse XML file very easily. DOMDocument class reads the XML document as a tree of nodes. DOMDocument Class is only supported by PHP version 5.0 or over.

<ResultSet date="2012-02-26 07:43:10">
	<Query>TTRE</Query>
	<Hits>1</Hits>
	<Result id="1">
		<analysis_id>2a891a941fe3</analysis_id>
		<state>live</state>
		<last_modified>2011-08-26T07:00:00Z</last_modified>
		<upload_date></upload_date>
		<center_name>XTRCD</center_name>
		<study>phs000178</study>
		<aliquot_id>4a8c8a7df3a5</aliquot_id>
		<files>
			<file>
				<filename>test.txt</filename>
				<filesize>59264187</filesize>
			</file>
		</files>
		
	</Result>
</ResultSet>

Following PHP code can be used to parse the above XML file:

<?PHP
	$doc = new DOMDocument();
	$doc->load('test.xml');
	$results = $doc->getElementsByTagName("Result" );
	foreach($results as $result)
	(
		$dataid = $result->getElementsByTagName("analysis_id");
		$id = $dataid->item(0)->nodeValue;
		$datauri = $result->getElementsByTagName(data_uri);
		$uri = $datauri->item(0)->nodeValue;
		$datafile = $result->getElementsByTagName("filename");
		$filename = $datafile->item(0)->nodeValue;
		$datasize = $result->getElementsByTagName("filesize");
		$filesize = $datasize->item(0)->nodeValue;
	}
?>

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