protected static function request_headers()
{
if (!self::$_request_headers) {
self::$_request_headers = array();
foreach ($_SERVER as $name => $value) {
if (preg_match('/^HTTP_/', $name)) {
$name = strtolower(substr($name, 5));
$name = ucwords(str_replace('_', ' ', $name));
$name = str_replace(' ', '-', $name);
self::$_request_headers[$name] = $value;
}
}
self::$_request_headers['X-Requested-With'] = 'PHPHttpRequest';
self::$_request_headers['Connection'] = 'close';
}
return self::$_request_headers;
}
