Hello, Request class ? https://laravel.com/docs/7.x/requests#input-trimming-and-norma...
You have to use the Request Facade or request helper to get those. It can be done like Request::get()
or request()->get()
import Illuminate\Http\Request
at the top to use facade
In your case use this
$solutionId=request()->get('solutionId');
$threadId=request()->get('threadId');
$thread=Thread::find($threadId);
$thread->solution=$solutionId;
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