xml

xml to array

$xmlstring = <<<XML
<?xml version='1.0'?>
<document>
  <cmd>login</cmd>
  <login>imdonkey</login>
</document>
XML;

$xml = simplexml_load_string($xmlstring);
$json = json_encode($xml);
$array = json_decode($json,TRUE);

array to xml

$arr = array(
'name'=> '丁三',
'age'=>29,
'job'=>array(
        'title'=>'经理',
        'salary'=>8888,
        'team'=>array('小红','小明','小华')
    )
);
 
 
function arr2xml($arr,$node=null) {
    if($node === null) {
        $simxml = new simpleXMLElement('<?xml version="1.0" encoding="utf-8"?><root></root>');
    } else {
        $simxml = $node;
    }
    // simpleXMLElement对象如何增加子节点?
 
    foreach($arr as $k=>$v) {
        if(is_array($v)) {
            //$simxml->addChild($k);
            arr2xml($v,$simxml->addChild($k));
        } else if(is_numeric($k)) { //标签不能以数字开头，和变量类似
           $simxml->addChild('item' . $k,$v);
        } else {
            $simxml->addChild($k,$v);
        }
    }
 
    return $simxml->saveXML();
}
 
$xmlstring = arr2xml($arr);