How do I loop through a PHP array containing data returned from MySQL?

Question

Ok I have a table with a few fields. One of the fields is username. There are many times where the username is the same, for example:

Answer 1

$qry=mysql_query(select * where username='bob');

if(mysql_num_rows($qry))

{

 while($row=mysql_fetch_array($qry,MSQL_NUM))

 {

        echo $row[0]."  ".$row[1]."  ".$row[2]."
";

 }

}