XML对象转换为数组

$xml_obj = simplexml_load_file('xxx.xml');

public function simplexml_obj2array($xml_obj)

{

if ($obj instanceof SimpleXMLElement) {

$obj = (array)$obj;

}

if (is_array($obj)) {

$result = $keys = array();

foreach ( $obj as $key=>$value) {

isset($keys[$key]) ? ($keys[$key] += 1) : ($keys[$key] = 1);

if ( $keys[$key] == 1 ) {

$result[$key] = self::simplexml_obj2array($value);

} elseif ( $keys[$key] == 2 ) {

$result[$key] = array($result[$key], self::simplexml_obj2array($value));

} else if( $keys[$key] > 2 ) {

$result[$key][] = self::simplexml_obj2array($value);

}

}

return $result;

} else {

return $obj;

}

}