Radius reply form external script

hello i am using the php script bellow as a test reply <?php echo "Session-Timeout = 60,"; echo "ChilliSpot-Bandwidth-Max-Down=1024,"; echo "ChilliSpot-Bandwidth-Max-Up=1024"; ?> but i am getting it as plain text instead of value pair like bellow Exec-Program output: Session-Timeout = 60, ChilliSpot-Bandwidth-Max-Down=1024, ChilliSpot-Bandwidth-Max-Up=1024 Exec-Program-Wait: plaintext: Session-Timeout = 60, ChilliSpot-Bandwidth-Max-Down=1024, ChilliSpot-Bandwidth-Max-Up=1024 what is wrong??