Laravel Route macros/helpers for serving multiple domains

helpers.php

<?php

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;

// Usage:
//
//  Route::domain('domain.com', function () {
//    Route::get('/', [DomainController::class, 'index']);
//  });
//
//  Route::redirectDomain('www.'.$domain, $domain); // e.g. redirect to non-www

Route::macro('redirectDomain', function (string $from, string $to) {
    Route::group(['domain' => $from], function () use ($to) {
        Route::get('/{any}', function (Request $request) use ($to) {
            $fullHost = $request->schemeAndHttpHost();
            $fullUrl = $request->fullUrl();

            if (strpos($fullUrl, $fullHost) === 0) {
                $fullPath = substr($fullUrl, strlen($fullHost));

                return redirect("https://{$to}{$fullPath}");
            }

            return redirect("https://{$to}");
        })->where('any', '.*');
    });
});

Route::macro('domain', function (string|array $domain, \Closure $definition) {
    foreach ((array) $domain as $domain) {
        Route::group(['domain' => $domain], $definition);
    }
});