Laravel по-русски

public static function slug($title, $separator = '-', $language = 'en', $field = false)
    {
        $title = $language ? static::ascii($title, $language) : $title;

        // Convert all dashes/underscores into separator
        $flip = $separator === '-' ? '_' : '-';

        $title = preg_replace('!['.preg_quote($flip).']+!u', $separator, $title);

        // Replace @ with the word 'at'
        $title = str_replace('@', $separator.'at'.$separator, $title);

        if($field) {
            $title = str_replace(',', '.', $title);
            $title = static::lower($title);
        } else {
            // Remove all characters that are not the separator, letters, numbers, or whitespace.
            $title = preg_replace('![^'.preg_quote($separator).'\pL\pN\s]+!u', '', static::lower($title));
        }

        // Replace all separator characters and whitespace by a single separator
        $title = preg_replace('!['.preg_quote($separator).'\s]+!u', $separator, $title);

        return trim($title, $separator);
    }

Route::get('/{slug}', 'CategoryController@view')->name('view.category');

public function view($slug) {
  $category = Category::where('slug', $slug)->first();
  return view('category', [
    'category' => $category
  ]);
}