how to sum php mysql

[ctcp]

<?php require_once('hlios.php'); ?>

  <?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}
}

$colname_test = "-1";
if (isset($_GET['id'])) {
  $colname_test = $_GET['id'];
}
mysql_select_db($database_hlios, $hlios);
$query_test = sprintf("SELECT * FROM carpets_1 WHERE id = %s", GetSQLValueString($colname_test, "int"));
$test = mysql_query($query_test, $hlios) or die(mysql_error());
$row_test = mysql_fetch_assoc($test);
$totalRows_test = mysql_num_rows($test);
?>
<?php echo $row_test['platos']; ?>
<p>+</p>
<p><?php echo $row_test['mhkos']; ?>
<?
mysql_free_result($test);
?>

 

how to sum <?php echo $row_test['platos']; ?>+ <?php echo $row_test['mhkos']; ?>=

thank you for help

[wildteen88]

This what you mean

<p><?php echo $row_test['platos']; ?> + <?php echo $row_test['mhkos']; ?> = <?php echo $row_test['platos'] + $row_test['mhkos']; ?></p>

 

[ctcp]

so simple thank you mate