PHP Splitting an Array into two arrays - keys array and values array

Question

Is there an easy way to split an array into two arrays, one consisting of all the keys and the other consisting of all the values? This would be a reverse to the action of

Answer 1

function array_split($data)
{
  $x = 0;//Counter to ensure accuracy
  $retArray[0] = array();//Array of Keys
  $retArray[1] = array();//Array of Values

  foreach($data as $key => $value)
  {
    $retArray[0][$x] = $key;
    $retArray[1][$x] = $value;
    $x++;
  }

  RETURN $retArray;
}

$data = array("key" => "value", "key2" => "value2");

$splitData = array_split($data);

//print_r($splitData[0]);//Output: Array ( [0] => key [1] => key2 ) 
//print_r($splitData[1]);//Output: Array ( [0] => value [1] => value2 ) 

print_r($splitData);
//Output:
/*
Array
(
    [0] => Array
        (
            [0] => key
            [1] => key2
        )

    [1] => Array
        (
            [0] => value
            [1] => value2
        )

)
*/