protected static function processAlias($alias) { if (file_exists('surls_functions.php')) { require 'surls_functions.php'; } $redirect_rules = Rules::GetRedirectRules(); if (isset($redirect_rules[$alias]) && "true" == $redirect_rules[$alias]['enabled']) { if (function_exists("surls_handler_{$alias}")) { call_user_func("surls_handler_{$alias}"); } else { header("Location: {$redirect_rules[$alias]['url']}", true, $redirect_rules[$alias]['http_status_code']); } } else { http_response_code(404); echo '<h1>404 Not Found</h1>'; } }