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index.php
$ss = $row['SUM(ProductNum)']; echo "<td>$ss</td>";//echo "<td>$row[SUM(ProductNum)]</td>";
$sss = $row['SUM(ProductNum*ProductUnitPrice)']; echo "<td>$sss won</td>"; //echo "<td>$row[SUM(ProductNum*ProductUnitPrice)] won</td>";
admin.php
$ss = $row['SUM(ProductNum)']; echo "<td>$ss</td>"; //echo "<td>$row[SUM(ProductNum)]</td>";
$sss = $row['SUM(ProductNum*ProductUnitPrice)']; echo "<td>$sss won</td>"; //echo "<td>$row[SUM(ProductNum*ProductUnitPrice)] won</td>";