CI4 get route by name

get_route.php

<?php

    /**
     * @param string $name
     * @param array $params
     * @return string
     */
    function routeByName(string $name, array $params = []): string
    {
        if (!static::$routesByName) {
            $verbs = ['get', 'put', 'post', 'patch', 'delete'];

            $getRoutes = fn(string $verb): array => array_keys(AppServices::routes()->getRoutes($verb));
            $routesByVerb = array_combine($verbs, array_map($getRoutes, $verbs));

            $getRouteVerb = fn(array $routes, string $verb): array => array_fill_keys($routes, $verb);
            $routeVerbPairGrouped = array_map($getRouteVerb, $routesByVerb, $verbs);
            $routesVerbPairs = array_merge(...$routeVerbPairGrouped);

            $getRouteDetails = fn(string $verb, string $from): array
                => AppServices::routes()->getRoutesOptions($from, $verb) + compact('from');
            $routeDetails = array_map($getRouteDetails, $routesVerbPairs, array_keys($routesVerbPairs));
            $routesByName = array_column($routeDetails, 'from', 'as');

            $url = strpos($url = $_SERVER['HTTP_HOST'], 'http') !== 0 ? 'http://'.$url : $url;
            $parts = parse_url($url);
            $prependDomain = fn(string $route) => $parts['scheme'].'://'.$parts['host']."/$route";
            static::$routesByName = array_map($prependDomain, $routesByName);
        }

        if (!($route = static::$routesByName[$name] ?? null)) {
            throw new UnexpectedValueException("No route definition for route name '$name'.");
        }

        while (preg_match('/\(.+?\)/', $route)) {
            $route = preg_replace('/\(.+?\)/', (string)array_shift($params), $route, 1);
        }

        return $params ? $route.'?'.http_build_query($params) : $route;
    }