/**
* Creates new headers collection from server parameters.
*
* @todo Think about better way to retrieve HTTP request headers.
*
* @param array $server Array with server parameters.
* This usually comes from $_SERVER superglobal.
*
* @return static
*/
public static function fromServer(array $server)
{
$headers = new Headers([]);
foreach ($server as $key => $value) {
if (substr($key, 0, 4) === 'HTTP') {
// Strip the HTTP_ from the beginning of the string.
$normalizedKey = strtolower(substr_replace($key, '', 0, 5));
// Replace every underscore with hyphen.
$normalizedKey = str_replace('_', '-', $normalizedKey);
// Normalize key case.
$normalizedKey = ucwords(strtolower($normalizedKey), '-');
// Add a header to the collection
$headers->set($normalizedKey, $value);
}
}
return $headers;
}
