How to connect multiple check-boxes to a single button and manipulate data in the database?

I want to change the status of any particular subject through check boxes and a single button. Basically I want to the value of status cell w.r.t. subCode through UPDATE query. I am writing my code below:

 <?php
    $connect = mysql_connect("localhost","root","") or die(mysql_error());
$db = mysql_select_db("new") or die(mysql_error());
$query = mysql_query("SELECT * FROM subject");
echo "<div>
    <table>
        <tr>
            <th></th>
            <th>Subject Code</th>
            <th>Subject Name</th>
            <th>L</th>
            <th>T</th>
            <th>P</th>
            <th>Program</th>
            <th>Semester</th>
            <th>Batch</th>
            <th>Staus</th>
        </tr>";
while($row = mysql_fetch_assoc($query))
{
    $dbSubCode   = $row['subCode'];
    $dbSubName   = $row['subName'];
    $dbLecture   = $row['lecture'];
    $dbPractical = $row['practical'];
    $dbTheory    = $row['theory'];
    $dbProgram   = $row['program'];
    $dbSemester  = $row['semester'];
    $dbBatch     = $row['batch'];
    $dbStatus    = $row['substatus'];
    echo "
        <tr>
            <td><input type='checkbox'></td>
            <td>$dbSubCode</td>
            <td>$dbSubName</td>
            <td>$dbLecture</td>
            <td>$dbTheory</td>
            <td>$dbPractical</td>
            <td>$dbProgram</td>
            <td>$dbSemester</td>
            <td>$dbBatch</td>
            <td>$dbStatus</td>
        </tr>";
}
echo "</table>
<button type='button'>Change Status</button>
</div>";
?>

This is the result of my code.

Please can you tell me what do now? I have been stuck at this point for weeks.