PHP get sum of SQL table - php

Question

I have MAMP (local hosted SQL,WEB etc server) the database name is :NKTDEBITS the table name is :Insurance and the column on the table is STATECOV. I know I'm close with this but still get a black in the field that should generate the total, anyone got a idea?
<?php
$con=mysqli_connect("localhost","root","root","KNTDebits");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM Insurance");
$result2 = mysqli_query($con,"SELECT * FROM Office");
$result3 = mysqli_query($con,"SELECT * FROM RichmondLocation");
$result4 = mysqli_query($con,"SELECT * FROM DanvilleLocation");
$result5 = mysql_query('SELECT SUM(STATECOV) AS STATECOV_sum FROM Insurance');
echo "<table border='1'>
<tr>
<th>Truck Number</th>
<th>VIN</th>
<th>Make</th>
<th>Model</th>
<th>State Coverage</th>
<th>Comprehinsive Coverage</th>
<th>Property Damage/th>
<th>Personal Injury</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['TNUM'] . "</td>";
echo "<td>" . $row['VIN'] . "</td>";
echo "<td>" . $row['MAKE'] . "</td>";
echo "<td>" . $row['MODEL'] . "</td>";
echo "<td>" . $row['STATECOV'] . "</td>";
echo "<td>" . $row['COMPRE'] . "</td>";
echo "<td>" . $row['PROPDMG'] . "</td>";
echo "<td>" . $row['PRSINJ'] . "</td>";
echo "</tr>";
}
echo "</table>";
//Table 2 Start
str_repeat(' ', 5); // adds 5 spaces
echo "<table border='5'>
<tr>
<th>Richmond</th>
<th>Date</th>
<th>Payment</th>
<th>Payer</th>
</tr>";
while($row3 = mysqli_fetch_array($result3))
{
echo "<tr>";
echo "<td>" . $row3[''] . "</td>";
echo "<td>" . $row3['DATE'] . "</td>";
echo "<td>" . $row3['PAYMENT'] . "</td>";
echo "<td>" . $row3['PAYER'] . "</td>";
echo "</tr>";
}
echo "</table>";
//Table 4 Start
str_repeat(' ', 5); // adds 5 spaces
echo "<table border='5'>
<tr>
<th>Danville</th>
<th>Date</th>
<th>Payment</th>
<th>Payer</th>
</tr>";
while($row4 = mysqli_fetch_array($result4))
{
echo "<tr>";
echo "<td>" . $row4[''] . "</td>";
echo "<td>" . $row4['DATE'] . "</td>";
echo "<td>" . $row4['PAYMENT'] . "</td>";
echo "<td>" . $sum . "</td>";
echo "</tr>";
}
echo "</table>";
//Table 5 Start
echo "<table border='5'>
<tr>
<th>Total</th>
</tr>";
$result = mysql_query('SELECT SUM(STATECOV) AS value_sum FROM Insurance');
$row = mysql_fetch_assoc($result);
$sum = $row['value_sum'];
while($row = mysql_fetch_assoc($result));
{
echo "<tr>";
echo "<td>" . $sum . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>

Answer 1

You need a GROUP BY to go along with your SUM. I don;t know enough about you table to let you know what column you should use for this.
You should be handling potential error cases whenn you query the database, as you will quickly see when you are getting database/query errors.
You should also look to use mysqli or PDO instead of the deprecated mysql_* functions.