数组有关问题，标题要长。

请教大家数组问题，标题要长。。。

PHP code

$arr=array(                        array('name' => 'aa','id' => '456'),                        array('name' => 'bb','id' => '25',),                        array('name' => 'cc','id' => '25',),                        array('name' => 'dd','id' => '456',),                    );

PHP code

                                $newArr=array();                                foreach($deals_info as $key=>$value){                                    if(!isset($newArr[$value['id']])){                                           $newArr[$value['id']][]=$value['name'];                                    }else{                                        foreach($newArr as $k=>$v){                                            if($k==$value['id'] and !in_array($value['name'],$newArr[$k])){                                                    $newArr[$k][]=$value['name'];                                            }                                        }                                    }                                }