Dynamicaly create table based on the column value - php

Question

I want to create another table if the value of Semester and School Year is different from the current table.
From the picture below, There was a value of "2 semester" and "school year 2014" basically what i want is each semester and school year has an own table. I don't want to code multiple table because i'm not sure what is the current school year and semester.
here is my code
<div class="table-responsive">
<table class="table table-bordered">
<thead>
<tr>
<th>Subject Code</th>
<th>Decription</th>
<th>Grade</th>
<th>Units</th>
<th>Semester</th>
<th>School Year</th>
</tr>
</thead>
<tbody>
<?php
$sql ="SELECT * FROM grades WHERE stud_no ='$stud_no'";
$result = mysqli_query($con, $sql);
while($row = mysqli_fetch_array($result)){
?>
<tr>
<td><?php echo $row['subj_cd'];?></td>
<td><?php echo ucwords(strtolower($row['subj_descr']));?></td>
<td><?php echo $row['final_grade'];?></td>
<td><?php echo $row['units_lec'] + $row['units_lab'];?></td>
<td><?php echo $row['semester'];?></td>
<td><?php echo $row['sch_year'];?></td>
</tr>
</tbody>
<?php
}
?>
</table>
</div>

Answer 1

Try the code below. Hope it is helps. :)
<?php
//Order year asc then semester asc
$sql ="SELECT * FROM grades WHERE stud_no ='$stud_no' ORDER BY sch_year, semester";
$result = mysqli_query($con, $sql);
// Init 2 empty variable for sem and year
$prev_year = $prev_sem = '';
while($row = mysqli_fetch_array($result)){
?>
<tr>
<td><?php echo $row['subj_cd'];?></td>
<td><?php echo ucwords(strtolower($row['subj_descr']));?></td>
<td><?php echo $row['final_grade'];?></td>
<td><?php echo $row['units_lec'] + $row['units_lab'];?></td>
<td><?php echo $row['semester'];?></td>
<td><?php echo $row['sch_year'];?></td>
</tr>
<?php
// Check is $prev_sem is empty or not. If empty, assign it. As $prev_sem and $prev_year will be set at the same time, it can skip to check $prev_year
if (!empty($prev_sem)) {
$prev_sem = $row['semester'];
$prev_year = $row['sch_year'];
}
// Check if previous sem and year is not same, print the HTML code below.
if ($prev_sem != $row['semester'] || $prev_year != $row['sch_year']) {
print '
</tbody>
</table>
</div>
<div class="table-responsive">
<table class="table table-bordered">
<thead>
<tr>
<th>Subject Code</th>
<th>Decription</th>
<th>Grade</th>
<th>Units</th>
<th>Semester</th>
<th>School Year</th>
</tr>
</thead>
<tbody>
';
}
}
?>
</tbody>