how to sum 2 rows php mysql

Question

my mysql db

ID platos mhkos 
1    22    33
2    15   12

search by ID and result = platos + mhkos how to ?

my code is

    <?php require_once('Connections/hlios.php'); ?>
<?php echo $row_test['platos']; ?>+ <?php echo $row_test['mhkos']; ?>

= <?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['client_id'])) {
  $colname_test = $_GET['client_id'];
}
mysql_select_db($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);


mysql_free_result($test);
?>

Your question seems unclear to me. Would you please give the example of what you're trying to achieve? — Kristiono Setyadi
– Kristiono Setyadi, Commented Jul 24, 2011 at 19:15
Did you mean how to get the sum of two columns? If yes, please edit the title of the question. — Sukumar
– Sukumar, Commented Jul 24, 2011 at 19:24

Blake · Accepted Answer · 2011-07-24 20:27:01Z

1

It seems as though what the OP means is sum of two COLUMNS in one ROW.

SELECT platos + mhkos AS totals FROM carpets_1 WHERE id = %s

If the OP wants sum of all columns and rows it would be

SELECT sum(platos) as totalPlatos, sum(mhkos) as totalMhkos FROM carpets_1

The question does seem quite confusing, though. Hence me leaning toward the initial two columns and one row.

answered Jul 24, 2011 at 20:27

Blake

2,3241 gold badge16 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

animuson · Accepted Answer · 2011-12-15 03:17:30Z

0

SELECT platos + mhkos AS totals FROM carpets_1 WHERE id = %s

edited Dec 15, 2011 at 3:17

animuson♦

54.9k28 gold badges142 silver badges150 bronze badges

answered Jul 24, 2011 at 19:16

Mike

24.6k14 gold badges84 silver badges93 bronze badges

2 Comments

Kristiono Setyadi Over a year ago

This will only sum a row, not 2 rows. CMIIW.

Mike Over a year ago

Please edit your question then and make it clearer what you are trying to sum; and given the data you provide, give the answer to that sum as well.

Collectives™ on Stack Overflow

how to sum 2 rows php mysql

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related