How do i get the first value or a PHP multi-demenstional array if I dont know the key?

Question

I have this array

 Array
 (
  [281] => Array
    (
        [0] => 1
        [1] => 10
        [2] => 
        [3] => 
        [4] => 1
    )

 )

how do i get the first element of this array if i dont know that the key is 281

i figured this would work but no go

$my_array[0]

Undefined offset

Answer 1

Supposed that you haven't traversed the array yet - use key() function to get the key value, and current for item value, or move pointer to the begin with reset()

var_dump(key($my_array));
var_dump(current($my_array));

Answer 2

多种方法，这是一种可行的方法：

$output = array_slice( $inputArr, 0, 1 ); 

Answer 3

use reset() . It will give the first element but will reset the internal pointer of the array though