How can i check request comes or not in laravel? - development

How can i check request comes or not in laravel?

I want to get $data['student'] if request get (like: student-guardian?reg_no=0001 in URL).
if no any parameter on url $data['student'] don’t needed.

My StudentGuardian function Like:

public function studentGuardian(Request $request)
{
    $data = [];
    if(!empty($request)){
        $data['student'] = Student::select('id','reg_no','reg_date', 'first_name', 'middle_name', 'last_name','faculty', 'semester','status')
            ->where(function ($query) use ($request) {

                if ($request->has('reg_no')) {
                    $query->where('students.reg_no', 'like', '%'.$request->reg_no.'%');
                    $this->filter_query['students.reg_no'] = $request->reg_no;
                }

            })
            ->get();
    }

    return view(('studentguardian.index'), compact('data'));
}

from Laravel Questions and Answers https://laravelquestions.com/laravel/how-can-i-check-request-comes-or-not-in-laravel/
via Lzo Media