在Slim Framework中上载文件时的未定义方法

Question

上传文件时，突然出现以下错误：

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

有问题的代码行是：

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

奇怪的是，我的代码没有任何改变。 文件确实存在。 实际上，当我检查$uploaded_file['file']我看到它是Slim \\ Http \\ UploadedFile的一个实例。

这是堆栈跟踪：

#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

在查看源代码之后 ，似乎要调用的方法是getClientMediaType()而不是getMediaType() 。

尝试用

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

希望这可以帮助