$email=DB::table('users')->where('id',1)->select('e_mail')->get();
dd($email);

Collection {#231 ▼
  #items: array:1 [▼
    0 => {#229 ▼
      +"e_mail": "admin@test.net"
    }
  ]
}

$email=DB::table('users')->where('id',1)->select('e_mail')->get();
"admin@test.net"!=$email[0]