问用大量数据用Laravel导出PDF

EN

我有下一个代码

$html = '';
foreach ($posts as $post) {
        $html .= '<div class="table-scrollable">
                        <table id="posts" class="table table-bordered table-hover">
                            <thead>
                                <tr>
                                    <th>Id</th>
                                    <th>Name</th>
                                    <th>Title</th>
                                </tr>
                            </thead>
                            <tbody id="body"><tr>
                                <td>'
                . $post->id . ' 
                                </td>
                                <td>' .
                $post->name .
                '</td>
                                <td>'
                . $post->title .
                '</td> 
                    </tr>
                   </tbody>
                </table>
            </div>';
}
return PDF::load($html, 'A4', 'portrait')->download('my_pdf');

问题是，当我想下载这么多数据时，我将得到下一个错误The localhost page isn’t working localhost is currently unable to handle this request.，但是如果我尝试下载例如20个条目，工作正常。我能做什么?

laravel.log

2016-11-24 13:15:17 production.ERROR: production.ERROR堆栈跟踪中带有消息“未定义变量:data_start”的异常“ErrorException”： 0 /Applications/XAMPP/xamppfiles/htdocs/dicom/app/controllers/IncasariController.php(58)： 照明\Exception\Handler->handleError(8，“未定义的varia.”，‘/Applications/X.’，58，Array) 1内部功能: IncasariController->filtrareChitante() 2个/Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(231)： Call_user_func_array(阵列，阵列) 3个/Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(93)： Illuminate\Routing\Controller->callAction('filtrareChitant...'，阵列) 4 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(62)： Illuminate\Routing\ControllerDispatcher->call(Object(IncasariController)，对象(照亮\路由\路由)、‘filtrareChitant.’) 5 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/Router.php(962)： Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route)，对象(照明\Http\请求)、‘IncasariControl.’、‘filtrareChitant.’) 6内部功能: Illuminate\Routing\Router->Illuminate\Routing{closure}() 7 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/Route.php(109)： Call_user_func_array(对象(闭包)，数组) 8个/Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/Router.php(1028)： Illuminate\Routing\Route->run(Object(Illuminate\Http\Request)) 9 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Routing/Router.php(996)： Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) 10 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(775)： Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) 11 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(745)： Illuminate\Foundation\Application->dispatch(Object(Illuminate\Http\Request)) 12 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Session/Middleware.php(72)： Illuminate\Foundation\Application->handle(Object(Illuminate\Http\Request)，1，真) 13 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Cookie/Queue.php(47)： Illuminate\Session\Middleware->handle(Object(Illuminate\Http\Request)，1，真) 14 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Cookie/Guard.php(51)： Illuminate\Cookie\Queue->handle(Object(Illuminate\Http\Request)，1，真) 15 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23)： Illuminate\Cookie\Guard->handle(Object(Illuminate\Http\Request)，1，真) 16 /Applications/XAMPP/xamppfiles/htdocs/dicom/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(641)： Stack\StackedHttpKernel->handle(Object(Illuminate\Http\Request)) 17 /Applications/XAMPP/xamppfiles/htdocs/dicom/public/index.php(49)：照明\Foundation\Application->run() 18 {main}

在网页上有：

The localhost page isn’t working

localhost is currently unable to handle this request.