代码编辑器：
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$xml = simplexml_load_file("php_xml_note.xml");4
echo $xml->to , "<br>";5
echo $xml->from , "<br>";6
echo $xml->heading , "<br>";7
echo $xml->body;8
$xml = simplexml_load_file("php_xml_note.xml");echo $xml->to , "<br>";echo $xml->from , "<br>";echo $xml->heading , "<br>";echo $xml->body;