Get Sum of MySQL Column in PHP

Get sum of MySQL column in PHP

You can completely handle it in the MySQL query:

SELECT SUM(column_name) FROM table_name;

Using PDO (mysql_query is deprecated)

$stmt = $handler->prepare('SELECT SUM(value) AS value_sum FROM codes');
$stmt->execute();

$row = $stmt->fetch(PDO::FETCH_ASSOC);
$sum = $row['value_sum'];

Or using mysqli:

$result = mysqli_query($conn, 'SELECT SUM(value) AS value_sum FROM codes'); 
$row = mysqli_fetch_assoc($result); 
$sum = $row['value_sum'];

How to get the sum in a column using MySQL and PHP

You need to make the SUM() the column in the query :

function calc_tech($day){

include("connect.php"); // include database connection

$res = $mysqli -> query(" SELECT  SUM(tech) as sum FROM sales WHERE day = $day ") or die($mysqli->error); // Fetch data from the table

$val = $res -> fetch_array();
    $tech_total = $val['sum'];


echo $tech_total; // Echo the result

}

How to follow user id to get sum of MySQL column in PHP?

Lets add alias to your column and get the column value based on index.

<?php
    $sql_select_point = 'SELECT SUM(total_amount) as tAmount FROM bp_roi WHERE user_id = ' . $user_id; 

    $query_select_point = db_conn_select($sql_select_point);
    foreach($query_select_point as $rs_select_point) {
        $bonus_point = $rs_select_point['tAmount'];    
    }
?>

how to calculate sum of column values using mysql and php?

You have to add $Col_cnt and $row_cnt to check total row & total column

Code:

// Start of printing column names as names of MySQL fields
  $col_cnt = 0;
  for ($i = 0; $i<mysqli_num_fields($result); $i++) {
    $field_info = mysqli_fetch_field($result);
    $col = "{$field_info->name}";
    echo $col . "\t";
    $col_cnt++;
  }
  print("\n");
  // End of printing column names

  $row_cnt = 0;
  $tot_BalanceAmt = 0;
  while($row = mysqli_fetch_assoc($result))
  {
    $schema_insert = "";
    $schema_insert .= $row['col_1'].$sep.$row['col_2'].$sep.$row['col_price'];
    $tot_BalanceAmt +=$row['col_price'];
    $schema_insert = str_replace($sep."$", "", $schema_insert);
    $schema_insert = preg_replace("/\r\n|\n\r|\n|\r/", " ", $schema_insert);
    $schema_insert .= "\t";
    print(trim($schema_insert));
    print "\n";
    $row_cnt ++;
  }

  $schema_insert = "";
  for($i=0;$i<$col_cnt-2;$i++)
  {
    $schema_insert .= " ".$sep;
  }
  $schema_insert .= "Total Amount".$sep;
  $schema_insert .= $tot_BalanceAmt.$sep;
  $schema_insert = str_replace($sep."$", "", $schema_insert);
  $schema_insert = preg_replace("/\r\n|\n\r|\n|\r/", " ", $schema_insert);
  $schema_insert .= "\t";
  print($schema_insert);
  print "\n";

PHP SQL SUM column with condition

You need to GROUP BY orderdate if you want to get the sum for each date. This creates one group for each of the distinct values of orderdate, and you can then use the aggregate function SUM() to get each sum for each group (so for you, that's the sum of price for each date).

If you do not supply a GROUP BY orderdate, you just get the sum across all rows.

SELECT SUM(price) as totalprice, orderdate
FROM table_order
WHERE deptnr='$departmetnnr' 
  AND orderstatus='CLOSE' 
  AND orderdate  BETWEEN '$oneyearbefore' AND '$currentdate' 
GROUP BY orderdate
ORDER BY orderdate

That said, you are currently injecting variables directly into the query, which should be avoided by using a prepared statement.

$stmt = $con->prepare("SELECT SUM(price) as totalprice, orderdate
                       FROM table_order
                       WHERE deptnr=? 
                         AND orderstatus='CLOSE' 
                         AND orderdate  BETWEEN ? AND ? 
                       GROUP BY orderdate
                       ORDER BY orderdate");
$stmt->bind_param("sss", $departmetnnr, $oneyearbefore, $currentdate);
$stmt->execute();
$stmt->bind_result($totalprice, $orderdate);
while ($stmt->fetch()) {
    $data[] = ["totalprice" => $totalprice, "orderdate" => $orderdate];
}
$stmt->close();
$json = json_encode($data);

You can also use SQL functions to create 1 year in the past and get the current date, instead of using PHP values. Use CURDATE() to get the current date, then define an interval of 1 year which you subtract from, these will then become the ranges for your BETWEEN.

$stmt = $con->prepare("SELECT SUM(price) as totalprice, orderdate
                       FROM table_order
                       WHERE deptnr=? 
                         AND orderstatus='CLOSE' 
                         AND orderdate  BETWEEN CURDATE() AND CURDATE() - INTERVAL 1 YEAR
                       GROUP BY orderdate
                       ORDER BY orderdate");
$stmt->bind_param("s", $departmetnnr);
$stmt->execute();
$stmt->bind_result($totalprice, $orderdate);
while ($stmt->fetch()) {
    $data[] = ["totalprice" => $totalprice, "orderdate" => $orderdate];
}
$stmt->close();
$json = json_encode($data);

MySql how to select sum column with 2 different where conditions in 1 query

SELECT
   account,
   SUM(CASE WHEN balance = 'dr' THEN amount
      WHEN balance = 'cr' THEN -amount
      ELSE 0
      END
   ) amount
FROM
   table
GROUP BY
   account

calculate sum total of all the figures in a column

mysql_connect($hostname, $username, $password);
mysql_select_db($db);

$sql = "select sum(column) from table";
$q = mysql_query($sql);
$row = mysql_fetch_array($q);

echo 'Sum: ' . $row[0];

Replace variable names and table/column names as needed.

PHP - How to echo the sum of values in a column?

Try this,

$result = mysql_query('SELECT SUM(votes) AS value_sum FROM table_name'); 
$row = mysql_fetch_assoc($result); 
$sum = $row['value_sum'];

With SQLi

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "SELECT SUM(votes) AS value_sum FROM table_name";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
        echo "sum is : " . $row["value_sum"];
    }
} else {
    echo "0 results";
}
$conn->close();

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