php中 下面这样的数组怎么取出里面的值 或者怎么变成二维数组 求大神帮忙

Question

Array
(
    [1] => Array
        (
            [0] => Array
                (
                    [goods_id] => 1
                    [price] => 450
                    [num] => 2
                )            [1] => Array
                (
                    [goods_id] => 2
                    [price] => 50
                    [num] => 2
                )            [2] => Array
                (
                    [goods_id] => 3
                    [price] => 250
                    [num] => 0
                )        ))

Answer 1

$新数组 = array_map('current', $原数组);

Answer 2

最外面还有一层array呢…

Answer 3

$a = Array
( 
   1 =>  Array
        (
            0 => Array
                (
                    'goods_id' => 1,
                    'price' => 450,
                    'num' => 2,
                )
        )
);
$b = array_map('current', $a);
print_r($b);Array
(
    [1] => Array
        (
            [goods_id] => 1
            [price] => 450
            [num] => 2
        ))

Answer 4

$arr=$arr[1];