displaying on seperate lines

hi,
i have the following piece of code:

while ($row=db_fetch_array($res2)){
extract($row);
echo "Group of users: $name \n";
}

where res2 is a query which gives more then one line of output.
i want my output to look like

Group of users: Student, Professor

and not

Group of users: Student
Group of users: PRofessor

which i am getting as present.

please help me as to how to get this...
i am in a real fix
thanks
alifya

consider the data which is being returned and how you are sending it to the browser

your code says

echo "Group of users: $name \n";

and that is clear that for each row put the label on, the data and a