未定義的方法在超薄框架上傳文件

Question

當需要上傳文件，我突然收到以下錯誤時：

Call to undefined method Slim\Http\UploadedFile::getMediaType() 

的代碼有問題的行是：

$uploaded_file['file']->getMediaType() 

奇怪的是，沒有什麼在我的代碼中發生了變化。該文件確實存在。實際上，當我檢查$uploaded_file['file']時，我發現它是Slim \ Http \ UploadedFile的一個實例。

這裏的堆棧跟蹤：

#0 [internal function]: Closure->{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Array) 
#1 /var/www/app/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(41): call_user_func(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array) 
#2 /var/www/app/vendor/slim/slim/Slim/Route.php(344): Slim\Handlers\Strategies\RequestResponse->__invoke(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array) 
#3 /var/www/app/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(116): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#4 /var/www/app/vendor/slim/slim/Slim/Route.php(316): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#5 /var/www/app/vendor/slim/slim/Slim/App.php(438): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#6 /var/www/app/index.php(2759): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#7 [internal function]: Closure->{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App)) 
#8 /var/www/app/vendor/slim/slim/Slim/DeferredCallable.php(43): call_user_func_array(Object(Closure), Array) 
#9 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App)) 
#10 /var/www/app/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(67): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App)) 
#11 /var/www/app/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(116): Slim\App->Slim\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#12 /var/www/app/vendor/slim/slim/Slim/App.php(332): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#13 /var/www/app/vendor/slim/slim/Slim/App.php(293): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response)) 
#14 /var/www/app/index.php(2765): Slim\App->run() 
#15 {main} 

Answer 1

在尋找the source code之後，似乎要調用的方法是getClientMediaType()，而不是getMediaType()。

嘗試用

$uploaded_file['file']->getClientMediaType() 

希望這有助於