honhui/routes/web.php

<?php

use Illuminate\Support\Facades\Route;

Route::get('/', function () {
    return response('OK', 200)->header('Content-Type', 'text/plain');
})->withoutMiddleware([
    \Illuminate\Cookie\Middleware\EncryptCookies::class,
    \Illuminate\Session\Middleware\StartSession::class,
    \Illuminate\View\Middleware\ShareErrorsFromSession::class,
    \Illuminate\Foundation\Http\Middleware\ValidateCsrfToken::class,
]);
Route::get('/check-upload', function() {
    return [
        'upload_max_filesize' => ini_get('upload_max_filesize'),
        'post_max_size' => ini_get('post_max_size'),
        'max_file_uploads' => ini_get('max_file_uploads'),
        'memory_limit' => ini_get('memory_limit'),
        'storage_path_writable' => is_writable(storage_path('app/public')),
        'storage_path' => storage_path('app/public'),
        'public_path' => public_path('storage'),
        'symlink_exists' => is_link(public_path('storage')),
    ];
});