forked from laminas/laminas-diactoros
/
parse_cookie_header.php
40 lines (32 loc) · 1.02 KB
/
parse_cookie_header.php
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<?php
declare(strict_types=1);
namespace Laminas\Diactoros;
use function preg_match_all;
use function urldecode;
use const PREG_SET_ORDER;
/**
* Parse a cookie header according to RFC 6265.
*
* PHP will replace special characters in cookie names, which results in other cookies not being available due to
* overwriting. Thus, the server request should take the cookies from the request header instead.
*
* @param string $cookieHeader A string cookie header value.
* @return array<non-empty-string, string> key/value cookie pairs.
*/
function parseCookieHeader($cookieHeader): array
{
preg_match_all('(
(?:^\\n?[ \t]*|;[ ])
(?P<name>[!#$%&\'*+-.0-9A-Z^_`a-z|~]+)
=
(?P<DQUOTE>"?)
(?P<value>[\x21\x23-\x2b\x2d-\x3a\x3c-\x5b\x5d-\x7e]*)
(?P=DQUOTE)
(?=\\n?[ \t]*$|;[ ])
)x', $cookieHeader, $matches, PREG_SET_ORDER);
$cookies = [];
foreach ($matches as $match) {
$cookies[$match['name']] = urldecode($match['value']);
}
return $cookies;
}