【问题标题】:local.ERROR: syntax error, unexpected '?', expecting variable (T_VARIABLE)local.ERROR:语法错误,意外的“?”,预期变量(T_VARIABLE)
【发布时间】:2018-06-27 22:22:21
【问题描述】:

我已经在 Ubuntu 16.04.4 上上传了我的 laravel 5.6 项目。 当我上传我的工作项目(API 在邮递员上测试过)时,它返回一个空白响应,并在 url 上显示“此页面不工作”“HTTP ERROR 500”。

据我了解,我的项目的 php 版本与服务器上的不同。

我的项目是基于php 7.1.9构建的,服务器php版本是7.1.18

任何形式的帮助或信息都会很有用。 提前谢谢你

日志:

local.ERROR: syntax error, unexpected '?', expecting variable (T_VARIABLE) {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\FatalThr$
[stacktrace]
#0 /var/www/narcodes/vendor/composer/ClassLoader.php(322): Composer\\Autoload\\includeFile('/var/www/narcod...')
#1 [internal function]: Composer\\Autoload\\ClassLoader->loadClass('Symfony\\\\Compone...')
#2 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/RouteCompiler.php(39): spl_autoload_call('Symfony\\\\Compone...')
#3 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Route.php(284): Illuminate\\Routing\\RouteCompiler->compile()
#4 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Route.php(261): Illuminate\\Routing\\Route->compileRoute()
#5 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/RouteCollection.php(197): Illuminate\\Routing\\Route->matches(Object(Illuminate\\Http\\Request), t$
#6 [internal function]: Illuminate\\Routing\\RouteCollection->Illuminate\\Routing\\{closure}(Object(Illuminate\\Routing\\Route), 'api/user')
#7 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Support/Arr.php(175): call_user_func(Object(Closure), Object(Illuminate\\Routing\\Route), 'api/user')
#8 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Support/Collection.php(657): Illuminate\\Support\\Arr::first(Array, Object(Closure), NULL)
#9 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/RouteCollection.php(198): Illuminate\\Support\\Collection->first(Object(Closure))
#10 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/RouteCollection.php(164): Illuminate\\Routing\\RouteCollection->matchAgainstRoutes(Object(Illumin$
#11 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Router.php(619): Illuminate\\Routing\\RouteCollection->match(Object(Illuminate\\Http\\Request))
#12 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Router.php(608): Illuminate\\Routing\\Router->findRoute(Object(Illuminate\\Http\\Request))
#13 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Router.php(597): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))
#14 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))
#15 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(O$
#16 /var/www/narcodes/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#17 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(151): Fideloper\\Proxy\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Obj$
#18 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illumina$
#19 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(31): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\$
#20 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(151): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Il$
#21 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illumina$
#22 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(31): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\$
#23 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(151): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Il$
#24 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illumina$
#25 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\$
#26 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(151): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Ill$
#27 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illumina$
#28 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(51): Illuminate\\Routing\\Pipeline->Illuminate\\Ro$
#29 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(151): Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode->handle(Obj$
#30 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illumina$
#31 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illumina$
#32 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(151): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#33 /var/www/narcodes/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Il$
#34 /var/www/narcodes/public/index.php(55): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))
#35 {main}
"}

【问题讨论】:

  • 如果没有您的代码/错误日志/更多信息,我们将无能为力。
  • 我很确定您的服务器没有运行 7.1.18。这通常是我在使用空合并运算符时从 PHP 5.6 或更低版本看到的错误。
  • @Devon 它的 7.1.18 ,我使用了多个 php 版本来检查它们是否像 5.6、7.2 一样工作,但它们没有工作
  • 简单检查,只需输出phpversion,看看你得到了什么。
  • 如果需要更多信息,请告诉我,我是新手,所以我不知道我应该提供什么以便您帮助我

标签: php laravel server ubuntu-16.04


【解决方案1】:

这个错误是因为你的php服务器版本,可能与你在执行php -v时看到的不同。

检查这一点的正确方法是在服务器端而不是在 CLI 上执行 php 信息。

如果您需要在 apache 上启用 php 7.2,这是 ubuntu 上的命令

首先禁用旧的php版本

sudo a2dismod php7.0

启用新版本

sudo a2enmod php7.2

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