php解析xml到二维数组问题，求大神指导

array(
array("name"=>"haha1",id=1,pid=0),
array("name"=>"haha2",id=2,pid=0),
array("name"=>"haha2,1",id=3,pid=2),
array("name"=>"haha2,2",id=4,pid=2),
array("name"=>"haha3",id=5,pid=0),
array("name"=>"haha3,1",id=6,pid=5),
array("name"=>"haha3.2",id=7,pid=5),
)
?>


把最上面的xml代码转换成下面php数组


下面是我写的代码，转换时候pid不对劲，我怎么调试都不行，还请指导
$xml = simplexml_load_file("hh.xml");
$arr = json_decode(json_encode($xml),TRUE);
print_r(arrto2($arr['hh']));
function arrto2($arr,$pid=0){
static $i=1;
static $data=array();
foreach($arr as $v){
if(is_array($v)){
foreach($v as $z => $x){
if($z==="@attributes"){
$v["@attributes"]['id']=$i;
$v["@attributes"]['pid']=$pid;
$data[$i]=$v["@attributes"];

}else{
arrto2($x,$i);
}

$i++;
}
}
}
return $data;
}

现在问题解决了，不错还有一个问题，解析中文时候会乱码，编码是gb2312,用utf8正常

回复讨论(解决方案)

问题解决了

arrto2($x,$v["@attributes"]['id']);就ok了

加上meta charset就不会乱码了。

hh.xml

 $x){                if($z==="@attributes"){                    $v["@attributes"]['id']=$i;                    $v["@attributes"]['pid']=$pid;                $data[$i]=$v["@attributes"];                }else{                    arrto2($x,$i);                }                                $i++;            }        }    }    return $data;}?>

Array(    [1] => Array        (            [name] => haha1哈哈            [id] => 1            [pid] => 0        )    [2] => Array        (            [name] => haha2哈哈            [id] => 2            [pid] => 0        )    [3] => Array        (            [name] => haha2.1哈哈            [id] => 3            [pid] => 3        )    [4] => Array        (            [name] => haha2.2哈哈            [id] => 4            [pid] => 3        )    [6] => Array        (            [name] => haha3哈哈            [id] => 6            [pid] => 0        )    [7] => Array        (            [name] => haha3.1哈哈            [id] => 7            [pid] => 7        )    [8] => Array        (            [name] => haha3.2哈哈            [id] => 8            [pid] => 7        ))