在Laravel中处理url的字符大小写？

如何将以下网址重定向到小写网址？

http://domain.com/City/really-long-slug-from-db/photos

http://domain.com/city/Really-Long-Slug-From-Db/photos

http://domain.com/City/really-long-slug-from-db/Photos

至

http://domain.com/city/really-long-slug-from-db/photos

这是我的路线:

Route::any('/{city}/{slug}/{page?}', 
    array(
        'as' => 'slug-page', 
        function($city, $slug, $page="info"){
        return View::make('default.template.'.$page)
            ->with('city', $city)
            ->with('page',$page)
            ->with('slug', $slug);
        }
    ))
    ->where(
        array(
            'city'   => '[a-z ]+',
            'page'   => '[a-z-]+',
            'slug'  => '(about|photos|videos)'
    ));

目前我使用正则表达式[a-z-]+只匹配较小的字符串字符串,并且NotFoundHttpException出于显而易见的原因抛出.如何在不区分大小写的字符串中接受所有这些参数,并在Laravel 5.1中将301重定向(以避免重复的URL)到较小的案例URL？

您可以使用路由中间件轻松完成此操作.中间件应检查路径中是否有任何大写字符并重定向到小写版本.

首先,定义中间件类:

class RedirectToLowercase
{
  public function handle($request, Closure $next) {
    $path = $request->path();
    $pathLowercase = strtolower($path); // convert to lowercase

    if ($path !== $pathLowercase) {
      // redirect if lowercased path differs from original path
      return redirect($pathLowercase);
    }

    return $next($request);
  }
}

然后在Kernel.php中注册新的中间件:

protected $routeMiddleware = array(
  // ... some other middleware classes ...
  'lowercase'       => 'App\Http\Middleware\RedirectToLowercase'
);

最后,将中间件应用到您的路线:

Route::any('/{city}/{slug}/{page?}', array(
  'as' => 'slug-page', 
  'middleware' => 'lowercase', 
  function() {
    // your code
  })
);