laravel if statement not working

can anyone please tell me why when the results are equal then it echo's out the response, but when the results are false then it shows a blank page. I am sure i have gone wrong somewhere.

if(isset($_GET['EX1']) && $_GET['EX2'] != ""){

        $Email = $_GET['EX1'];
        $Password = $_GET['EX2'];

        $userDetails = DB::table('applicants')
            ->where('Email', '=', $Email)
            ->where('Password','=', $Password)
            ->get();

        if($Email = $userDetails[0]->Email && $Password = $userDetails[0]->Password){

            echo 'Both are the same ';

        }else{

            echo 'Not the same';

        }
    }