// set the last_host if we are just beginning
		if (($first_record==true)){

		  $last_host=$row["host_name"];
		  $last_port=$row["port_number"];
		  $first_record=false;

		}

		// test to see if we need to print the first_header
		if (($first_header == true)) {

		  echo '<tr>';
		  echo '<th>Host Name/IP</th>';
		  echo '<th>Ingress Bytes</th>';
		  echo '<th>Total In GB</th>';
		  echo '<th>Egress Bytes</th>';
		  echo '<th>Total Out GB</th>';
		  echo '<th>Difference</th>';
		  echo '<th>Port</th>';

		  echo '</tr>';
		  // we have printed it so now regular header and the first header are false
		  // header will move b etween true and false as we go through the loop
		  $header=false;
		  // first_header will remain false as we go throught the loop
                  $first_header=false;
		}


		// test to see if we need to print the header (first_header set this false on first loop)
		if (($header == true)) {

		  echo '<tr>';
		  echo '<th>Host Name/IP</th>';
		  echo '<th>Ingress Bytes</th>';
		  echo '<th>Total In GB</th>';
		  echo '<th>Egress Bytes</th>';
		  echo '<th>Total Out GB</th>';
		  echo '<th>Difference</th>';
		  echo '<th>Port</th>';
		  echo '</tr>';

		  // we have printed it so now regular header is false
		  $header=false;
                  
		}
		
		// set test_host
                $test_host=$row["host_name"];
		
		// set test port
		$test_port=$row["port_number"];

		// if the last one tested is the same as this one
		if ($last_host == $test_host){


		  // set the port change status
		  if ($last_port == $test_port){
		    // set same_port true
		    $same_port=true;
		    // set the last_port
		    $last_port=$row["port_number"];
		  } else {
		    // set same_port false
		    $same_port=false;
		    // set the last_port
		    $last_port=$row["port_number"];
		    $tot_port=$last_port;
		  }


		  // set same_host to tru
		  $same_host=true;
		  
		  // add to the running total for existing host
		  $in = ($in + $row["in_bytes"]);
		  $out = ($out + $row["eg_bytes"]);
		  $diff = (max($in,$out) - min($in,$out));
		  


		  // add up running totals to the end totals for the host
		  $in = ($in + $row["in_bytes"]);
		  $out = ($out + $row["eg_bytes"]);
		  $diff = (max($in,$out) - min($in,$out));
		  
		  // transfer totals to gt for later use
		  $tot_in=$in;
		  $tot_out=$out;
		  $tot_diff=$diff;
		  


		  // printing occurs if port changes same_port=false

		  // zero grand total counters
		  $in=$out=$diff=0;


		} else {  // if the test_host is not the same then we have to print out the grand total and reset

		  // set same_host false ( later logic calls for the total printout)
                  $same_host=false;

		  // set same port to false 
		  $same_port=false;

		  // zero the grand total counters
		  $in=$out=$diff=0;

		  // add to the running total for this new host
		  $in = ($in + $row["in_bytes"]);
		  $out = ($out + $row["eg_bytes"]);
		  $diff = (max($in,$out) - min($in,$out));

		  // set last_port 
		  $last_port = $row["port_number"];
		  $tot_port=$last_port;
 
                }
		       

		if (($same_host == false) || ($same_port==false)){

		  // print out the line and totals 
		  echo '<tr>';
		  echo '<td>' . $last_host . '</td>';
		  echo '<td>' . $tot_in . '</td>';
		  echo '<td>' . number_format(($tot_in/1000000000),4) . ' G</td>';
		  echo '<td>' . $tot_out . '</td>';
		  echo '<td>' . number_format(($tot_out/1000000000),4) . ' G</td>';
		  echo '<td>' . number_format(($tot_diff/1000000000),4) . ' G</td>';
		  echo '<td>' . $tot_port . '</td>';
		  echo '</tr>';

		  // increment the line counter to print header when we change pages at line 25
		  (($ctr++));

		  // set the header printing flag to true if the counter is exceeded
		  //if($ctr > 25){ 
		  //  $header=true;
		  //}
              			
		} else {  // set the last_host and last_port as we leave this loop

		  // set last_host
		  $last_host=$row["host_name"];

		  // set last_port
		  $last_port=$row["port_number"];

		}