Laravel get specific Route parameters - laravel-9

Question

I am from Taiwan, Sorry for my poor English first.
I try to get Laravel specific Route parameters, here are what i have done:
Route :
Route::get('/a', function () {
//
})->name('test.a');
Route::get('/b/{b1}/{b2}', function () {
//
})->name('test.b');
Route::get('/c/{c1}/{c2?}/{c3}', function () {
//
})->name('test.c');
PHP :
function getRouteParameters(?string $routeName)
{
$routeCheck = Illuminate\Support\Facades\Route::getRoutes()->hasNamedRoute($routeName);
if ($routeCheck) {
$routeParameters = [];
$route = Illuminate\Support\Facades\Route::getRoutes()->getByName($routeName);
$uri = $route->uri();
$uriArray = explode('/', $uri);
$uriParameters = array_filter($uriArray, function ($value) {
return str_contains($value, '{');
});
foreach ($uriParameters as $uriParameter) {
$uriParameterName = str_replace(['{', '?', '}'], '', $uriParameter);
$uriParameterStatus = str_contains($uriParameter, '?') ? 'optional' : 'required';
$routeParameters[$uriParameterName] = $uriParameterStatus;
}
return $routeParameters;
}
return false;
}
$a = getRouteParameters('test.a');
$b = getRouteParameters('test.b');
$c = getRouteParameters('test.c');
$d = getRouteParameters('test.d');
dump($a, $b, $c, $d);
Result :
// $a
[]
// $b
array:2 [▼
"b1" => "required"
"b2" => "required"
]
// $c
array:3 [▼
"c1" => "required"
"c2" => "optional"
"c3" => "required"
]
// $d
false
It's there a better way to do this ( without write the function by myself )?