Laravel htmlspecialchars() 期望参数 1 是字符串，给定数组

Question

我尝试在我的配置文件夹中获取languages.php 提供的语言列表，但出现此错误

htmlspecialchars() expects parameter 1 to be string, array given (View: C:\laragon\www\newproject\resources\views\layouts\panel.blade.php) (View: C:\laragon\www\newproject\resources\views\layouts\panel.blade.php)

这是我的languages.php

<?php

return [
  'en' => [
      'name' => 'English',
      'flag' => 'images/flags/en.png'
  ],
  'fa' => [
      'name' => 'پارسی',
      'flag' => 'images/flags/iran.png'
  ],

];

我的中间件Language.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Foundation\Application;
use Illuminate\Http\Request;
use Illuminate\Routing\Redirector;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Session;


class Language
{
    public function handle($request, Closure $next)
    {
      if (Session::has('applocale') AND array_key_exists(Session::get('applocale'), Config::get('languages'))) {
          App::setLocale(Session::get('applocale'));
      }
      else { // This is optional as Laravel will automatically set the fallback language if there is none specified
          App::setLocale(Config::get('app.fallback_locale'));
      }
      return $next($request);
    }
}

LanguageController

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Config;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Support\Facades\Session;

class LanguageController extends Controller
{
    public function index($lang)
    {
      if (array_key_exists($lang, Config::get('languages'))) {
            Session::put('applocale', $lang);
        }
        return Redirect::back();
    }
}

路线

Route::get('lang/{lang}', ['as'=>'lang.switch', 'uses'=>'LanguageController@index']);

最后是我的观点

<li class="dropdown langs">
  <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">
  {{ Config::get('languages') }} <span class="caret"></span>
</a>

 <ul class="dropdown-menu" role="menu">
   @foreach (Config::get('languages') as $lang => $language)
   @if ($lang != App::getLocale())
   <li>
     <a href="{{ route('lang.switch', $lang) }}">{{ $language['name'] }}</a>
   </li>
   @endif
   @endforeach
 </ul>
</li>

Answer 1

错误出现在下拉定义的{{ Config::get('languages') }} 这一行，在这里您希望打印一个字符串，而不是尝试像字符串一样打印取自 languages.php 的完整数组，因此htmlspecialchars 函数失败，因为第一个参数与所需的参数类型不匹配。