git.stricted.de - GitHub/WoltLab/WCF.git/blob

   1 <?php
   2
   3 /**
   4  * @see       https://github.com/laminas/laminas-diactoros for the canonical source repository
   5  * @copyright https://github.com/laminas/laminas-diactoros/blob/master/COPYRIGHT.md
   6  * @license   https://github.com/laminas/laminas-diactoros/blob/master/LICENSE.md New BSD License
   7  */
   8
   9 declare(strict_types=1);
  10
  11 namespace Laminas\Diactoros;
  12
  13 use function preg_match;
  14
  15 /**
  16  * Return HTTP protocol version (X.Y) as discovered within a `$_SERVER` array.
  17  *
  18  * @throws Exception\UnrecognizedProtocolVersionException if the
  19  *     $server['SERVER_PROTOCOL'] value is malformed.
  20  */
  21 function marshalProtocolVersionFromSapi(array $server) : string
  22 {
  23     if (! isset($server['SERVER_PROTOCOL'])) {
  24         return '1.1';
  25     }
  26
  27     if (! preg_match('#^(HTTP/)?(?P<version>[1-9]\d*(?:\.\d)?)$#', $server['SERVER_PROTOCOL'], $matches)) {
  28         throw Exception\UnrecognizedProtocolVersionException::forVersion(
  29             (string) $server['SERVER_PROTOCOL']
  30         );
  31     }
  32
  33     return $matches['version'];
  34 }