Storing multiple value in database using checkbox - php

Question

I want to store both $row_tbl['Course_ID'] and $row_tbl['Section'] value in checkbox name variable. Basically I want to store course id and section in database by checking that field.
What can I do?
<?php
if (isset($_POST["sub"])) {
$values = $_POST['check'];
$valuesArr = array();
foreach ($values as $a){
$valuesArr[] = mysql_real_escape_string($a);
}
$max = sizeof($values);
for ($i = 0; $i < $max ; $i++) {
$query2 = "INSERT INTO course_reg (stu_id,course_id,section,semester,grade,status) VALUES ('$sesid','$valuesArr[$i]','????','Summer 2016','Z','a')";
$reg = mysqli_query($con, $query2);
}
}
?>
<?php while($row_tbl = mysqli_fetch_array($query)): ?>
<tr class="success" style="font-size:12px;">
<td>
<input type="checkbox" name="check[]" class="chk_val" value="<?php echo $row_tbl['Course_ID'] ?>" id="in" onclick="test()" />
</td>
<td><?php echo $row_tbl['Course_ID'] ?></td>
<td><?php echo $row_tbl['Course_Title'] ?></td>
<td><?php echo $row_tbl['Section'] ?></td>
<td><?php echo $row_tbl['Time'] ?></td>
<td><?php echo $row_tbl['Day'] ?></td>
<td><?php echo $row_tbl['Dept'] ?></td>
<td><?php echo $row_tbl['Capacity'] ?></td>
</tr>
<?php endwhile; ?>

Answer 1

You need to maintain index value of each checkbox for getting checked checkbox values check below ex:
$index = 0;
while($row_tbl = mysqli_fetch_array($query))
{
<input type="checkbox"
name="<?php echo 'check['.$index.']['.$row_tbl['Course_ID']; ?> ]"
value=" <?php echo $row_tbl['Section'] ?> "/>
<?php echo $row_tbl['Section'] ?>
$index++;
}
At Php server page loop through index and call insert into DB logic