How to get a row from an array?

[SubhanUllah]

$array = [ 
  [1, 2], 
  [3, 4] 
]; 
 
$row = $array[1]; 
 
/* 
 * Output: 
 * Array( 
  [0] => 3 
  [1] => 4 
 ) 
 */ 
print_r($row);