Process cookies returned from curl into arrays

The purpose of processing cookies returned by curl into an array is to convert Cookies in the Header returned by Curl into an array and obtain the Location. example :...... Cache-Control: & nbsp; private, no-cacheset-cookieExpires: & nbsp;-1 Pragma: & nbsp; no-cacheLocation: & nbsp; h processes cookies returned by curl into arrays
The purpose is to convert the Cookies in the Header returned by Curl into an array and obtain the Location

Example:
......
Cache-Control: private, no-cache = "set-cookie"
Expires:-1
Pragma: no-cache
Location: http://example.com/
Set-Cookie: B = 1; Path =/
Set-Cookie: C = 5; Path =/
Set-Cookie: R = 5; Path =/
Convert
Array ("B" => "1", "C" => "5", "R" => "5 ")
And retrieve the Location as $ l = "http://example.com /";

Thank you.
------ Solution --------------------

$s = <<< TXT
Cache-Control: private,no-cache="set-cookie"
Expires: -1
Pragma: no-cache
Location: http://example.com/
Set-Cookie: B=1; Path=/
Set-Cookie: C=5; Path=/
Set-Cookie: R=5; Path=/
TXT;

$res = array();
foreach(preg_split("/[\r\n]+/", $s, -1, PREG_SPLIT_NO_EMPTY) as $row) {
  switch($k = strtok($row, ':')) {
    case 'Location':
      $res[$k][] = trim(strtok(''));
      break;
    case 'Set-Cookie':
      $res[$k][trim(strtok('='))] = trim(strtok(';'));
      break;
  }
}
print_r($res);

Array
(
[Location] => Array
(
[0] => http://example.com/
)

[Set-Cookie] => Array
(
[B] => 1
[C] => 5
[R] => 5
)

)