How can i get a int value of a sql query in a php variable ? So i can later use it calculate with php variables

Question

  $sql = "Select SUM(credit) as totaal_number from table_numbers";

    $result = mysql_query($sql);

    while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
        print_r($row, true);
        $number2 = $row['0'];
        }

$number1 = 5000;
$total = $number1 - $number2;
echo $total;

I know the value of number2 must be 1000 , but don't get as output 4000, please help me.

Answer 1

$row = mysql_fetch_array($result);
        $number2 = $row[0];

use something like that