php二维数组去重

private function remove_array($arry){
$result = array();
foreach($arry as $k => $v){
$has = false;
foreach($result as $val){
if($val['id'] == $v['id']){
$has = true;
break;
}
}
if(!$has){
$result[] = $v;
}
}
return $result;
}