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Asked: 2026-05-26T13:45:04+00:00

What I want is the echo <p>Average Mark: $average</p>; to appear above the table

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What I want is the echo "<p>Average Mark: $average</p>"; to appear above the table rather than below the table. If I do this though the problem is that it won’t calculate the average as the echo is above the variable. But if I move the variable and with it the while loop above the whole table as I also need the while loop to select the $row[Mark]' field from a query as that is the field that is going to be averaged, it messes up the structure of the table. How can I display the $average, $total, $count etc variables and echo "<p>Average Mark: $average</p>"; above the table without messing up the table structure?

Below is current code and you can see the $count++; , $total += $row['Mark']; in the while loop and the $average variable and echo at the bottom.

    $result = mysql_query($query);
    mysql_close();



 ?>
<table border='1'>
      <tr>
      <th>Session ID</th>
      <th>TeacherUsername</th>
      <th>Teacher Name</th>
      <th>Module Number</th>
      <th>Module Name</th>
      <th>Course ID</th>
      <th>Course Name</th>
      <th>Year</th>
      <th>Student Username</th>
      <th>Student Name</th>
      <th>Mark</th>
      <th>Grade</th>
      </tr>
      <?php
       $total = 0;
        $count = 0;
        while ($row = mysql_fetch_array($result)) {
        $count++;
          $total += $row['Mark'];
          echo "
      <tr>
      <td>{$row['SessionId']}</td>
      <td>{$row['TeacherUsername']}</td>
      <td>{$row['TeacherForename']} {$row['TeacherSurname']}</td>
      <td>{$row['ModuleId']}</td>
      <td>{$row['ModuleName']}</td>
      <td>{$row['CourseId']}</td>
      <td>{$row['CourseName']}</td>
      <td>{$row['Year']}</td>
      <td>{$row['StudentUsername']}</td>
      <td>{$row['StudentForename']} {$row['StudentSurname']}</td>
      <td>{$row['Mark']}</td>
      <td>{$row['Grade']}</td>
      </tr>";
        }
        ?>

        </table>

    <?php
    $average = (int)($total/$count);
    echo "<p>Average Mark: $average</p>";
  ?>
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1 Answer

  1. Editorial Team

    Instead of echoing the rows , save them to a variable. Then echo the calcuated value before eching the variable you saved. Observe: 

    $result = mysql_query($query);
    mysql_close();



$output += "
<table border='1'>
      <tr>
      <th>Session ID</th>
      <th>TeacherUsername</th>
      <th>Teacher Name</th>
      <th>Module Number</th>
      <th>Module Name</th>
      <th>Course ID</th>
      <th>Course Name</th>
      <th>Year</th>
      <th>Student Username</th>
      <th>Student Name</th>
      <th>Mark</th>
      <th>Grade</th>
      </tr>
";
       $total = 0;
        $count = 0;
        while ($row = mysql_fetch_array($result)) {
        $count++;
          $total += $row['Mark'];
          $output += "
      <tr>
      <td>{$row['SessionId']}</td>
      <td>{$row['TeacherUsername']}</td>
      <td>{$row['TeacherForename']} {$row['TeacherSurname']}</td>
      <td>{$row['ModuleId']}</td>
      <td>{$row['ModuleName']}</td>
      <td>{$row['CourseId']}</td>
      <td>{$row['CourseName']}</td>
      <td>{$row['Year']}</td>
      <td>{$row['StudentUsername']}</td>
      <td>{$row['StudentForename']} {$row['StudentSurname']}</td>
      <td>{$row['Mark']}</td>
      <td>{$row['Grade']}</td>
      </tr>";
        }


          $output += "        </table>";

    $average = (int)($total/$count);
    echo "<p>Average Mark: $average</p>";
echo $output;
  ?>
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