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 array_key_exists;
  14 use function is_string;
  15 use function strpos;
  16 use function strtolower;
  17 use function strtr;
  18 use function substr;
  19
  20 /**
  21  * @param array $server Values obtained from the SAPI (generally `$_SERVER`).
  22  * @return array Header/value pairs
  23  */
  24 function marshalHeadersFromSapi(array $server) : array
  25 {
  26     $headers = [];
  27     foreach ($server as $key => $value) {
  28         if (! is_string($key)) {
  29             continue;
  30         }
  31
  32         if ($value === '') {
  33             continue;
  34         }
  35
  36         // Apache prefixes environment variables with REDIRECT_
  37         // if they are added by rewrite rules
  38         if (strpos($key, 'REDIRECT_') === 0) {
  39             $key = substr($key, 9);
  40
  41             // We will not overwrite existing variables with the
  42             // prefixed versions, though
  43             if (array_key_exists($key, $server)) {
  44                 continue;
  45             }
  46         }
  47
  48         if (strpos($key, 'HTTP_') === 0) {
  49             $name = strtr(strtolower(substr($key, 5)), '_', '-');
  50             $headers[$name] = $value;
  51             continue;
  52         }
  53
  54         if (strpos($key, 'CONTENT_') === 0) {
  55             $name = strtr(strtolower($key), '_', '-');
  56             $headers[$name] = $value;
  57             continue;
  58         }
  59     }
  60
  61     return $headers;
  62 }