creating dynamic columns and rows with data

[assgar]

Hi

The goal is to allow the user the ability to compare daily schedules of
between 1 to 7 users.

The number of columns/user schedule and column headers
are dynamically created base on user selection.

Each user schedule is set up in columns with the user name
at the top of the column and appointments in the columns.

For a static number of columns in a loop I would use the approach
below to display client names for columns.

I am having problems creating dynmic unique column array names for
client_name.

//static columns

for()
  {
     echo"<tr>
         <td>$client_name1</td>
             <td>$client_name2</td>
             <td>$client_name3</td>
             <td>$client_name4</td>
             <td>$client_name5</td>
             <td>$client_name6</td>
         </tr>";
  }             

code:

<?

function calendar_event_list_play($users, $date, $db_host, $db_user, $db_password)
  {
    //database connnection goes here

        /**-------------selected database contents stored in arrays---------**/
        $group_seg[] = $row;//get user availability 
        $events[] = $row;//appointments for users
        $provider[] = $row;//users names for column header

        $width = 23;//dymanic column width calculation base on number of user schedules selected 

         /**--------------header with user names--------------**/
    echo"<table>
         <tr>";

    //appointmant time header
    echo"<td width='$time_slot%'>Time</td>";

    //user name column header
    for($num = 0; $num < count($provider); $num++)
       {
          $last_name = $provider[$num][last_name];//get provider last name for title

              echo"<td width='$width%'><a href ='../calendar_form.php>$provider_name</a></td>";
       }
     echo "</tr>
               </table>";


        echo "<table width='100%'>\n";

    //Loop over to display appointment time 15 min time slots
    for($time = $start_time; $time <= $end_time; $time += $add_time)
    {
       //format 24 hour time interval for passing via url
       $interval_24hr =  date("H:i:s", $time);

       /**-----------------------event time listing ------------------------**/
       echo "<tr>";

       //Output the time interval label
       echo"<td width='8%' height='15'>
            <div id='cal-number' style =''>
             <ul>
                <li>".date("h:i A", $time)."</li>
             </ul>
            </div>
        </td>";

       //number of columns 
       for($i = 0; $i < count($provider); $i++)
         {
           //loop to display appointments for column
           foreach ($events as $event)
            {
                //Event falls into this hour
            if($interval_24hr == $event['event_time'])
                   {
              $client_name = substr($event['last_name'],0,14);
               }
               else
                {
                $client_name = "";
                }
        }//end foreach

            //number of user columns dynamic with appointments displayed
            echo"<td $width%'><a href ='../calendar_event_manage_form.php>$client_name</a></td>";

          }
          echo "</tr>";
        }

    echo "</table>";
}//end function
?>