$arr1 = [
	['id'=>10086,'name'=>'移动'],
	['id'=>10010,'name'=>'联通'],
	['id'=>10000,'name'=>'电信'],
	['id'=>110,'name'=>'公安局'],
	['id'=>119,'name'=>'消防局'],
	['id'=>120,'name'=>'急救'],
];

$arr2 = [120,119,110,10010];

foreach($arr1 as $v){
	if(($pos = array_search($v['id'], $arr2))!== false){
		$arr3[$pos][] = $v;
	}else{
		$arr3[count($arr2)+1][] = $v;
	}
}

ksort($arr3);
$arr = [];
foreach($arr3 as $v){
	$arr = array_merge($arr, array_values($v));
}
print_r($arr3);
print_r($arr);

最后输出如下（按照$arr2排序）：

Array
(
    [0] => Array
        (
            [id] => 120
            [name] => 急救
        )

    [1] => Array
        (
            [id] => 119
            [name] => 消防局
        )

    [2] => Array
        (
            [id] => 110
            [name] => 公安局
        )

    [3] => Array
        (
            [id] => 10010
            [name] => 联通
        )

    [4] => Array
        (
            [id] => 10086
            [name] => 移动
        )

    [5] => Array
        (
            [id] => 10000
            [name] => 电信
        )

)