从两个数组PHP获取GET Max数组

Question

I want which is the biggest array from following array.

 [13] => Array
        (
            [0] => 1
            [1] => 3
            [2] => 9
        )

[15] => Array
    (
        [0] => 1
        [1] => 5
        [2] => 8
    )

[33] => Array
    (
        [0] => 1
        [1] => 9
        [2] => 13
    )

I want a code that would return last array with key 33. Please Help.

Answer 1

Use max to get the maximum from the keys of your array

$yourarray=array(13 => Array
(
    0 => 1,
            1 => 3,
            2 => 9,
        ),

15 => Array
(
    0 => 1,
        1 => 5,
        2 => 8,
    ),

33 => Array
(
    0 => 1,
        1 => 9,
        2 => 13,
    ));
$arr=max(array_keys($yourarray));
print_r($yourarray[$arr]);

Output:

Array
(
    [0] => 1
    [1] => 9
    [2] => 13
)