Student Attendance Report within a PIVOT Table - php

Question

I am trying to record the attendance of my students that attend my courses. Courses are different lengths and times and I just need to record if a student is (P)resent (L)ate (A)sent. I record the attendance in 1 table and display the records in a pivot table based on the date attended. I am a newby and just can't workout this code to include all the details I need to show. id, bid, fullname, nickname, company_idno, (P)(L)(A).
Please could someone look at my code and tell me how to add this information to the pivot table.
This is what I want to show
This is where I store the information
This is table1
This is table2
At the moment I achieved the look I want but use 2 tables and use CSS to fix the widths of table 1 and place table 2 next to it.
I realize this is terrible practice and of course, I get odd results across different platforms, especially iOS which put a 47px gap between the 2 tables which I can't seem to remove also.
I want just want table 2 to show all the information. I can only show 3 fields, id, date, pla. How to add fullname, nickname and company_idno ??
Table 1
<table id="tblplanames" >
<td id="tdplabc">sid</td>
<td id="tdplabc">bid</td>
<td id="tdplacid" style="text-align: center">Cid</td>
<td id="tdplafn" style="text-align: center">Fullname</td>
<td id="tdplann" style="text-align: center">Nickname</td>
<?php
$sql13="SELECT * FROM students WHERE classno='$id' ORDER BY bluecard_no ASC ";
$sql_row13=mysqli_query($link,$sql13);
while($sql_res13=mysqli_fetch_assoc($sql_row13)) {
$stsid=$sql_res13["id"];
$stidno=$sql_res13["company_idno"];
$stbluecard_no=$sql_res13["bluecard_no"];
$stfullname=$sql_res13["fullname"];
$stnickname=$sql_res13["nickname"];
?>
<tr>
<td id="tdplabc"><a href=edit_student.php?id=<?php echo $stsid ?>><?php echo $stsid; ?></td>
<td id="tdplabc"><a href=edit_student.php?id=<?php echo $stsid ?>><?php echo $stbluecard_no; ?></td>
<td id="tdplacid"><a href=edit_student.php?id=<?php echo $stsid ?>><?php echo $stidno; ?></td>
<td id="tdplafn"><a href=edit_student.php?id=<?php echo $stsid ?>><?php echo $stfullname; ?></td>
<td id="tdplann"><a href=edit_student.php?id=<?php echo $stsid ?>><?php echo $stnickname; ?></td>
</tr>
<?php
}
?>
</table>
Table 2
<?php
$id = $_GET['id'];
$sql = "SELECT DISTINCT date
FROM attendance
WHERE classno = $id
ORDER BY DATE";
$res = $link->query($sql); // mysqli query
while ($row = $res->fetch_row()) {
$dates[] = $row[0];
}
/***********************************
* Table headings *
************************************/
$emptyRow = array_fill_keys($dates,'');
// format dates
foreach ($dates as $k=>$v) {
$dates[$k] = date('d-M', strtotime($v));
}
$heads = "<table id='tblpla'>\n";
$heads .= "<tr><td>sid</td><td>" . join('</td><td>', $dates) . "</td></tr>\n";
/***********************************
* Main data *
************************************/
$sql = "SELECT date, sid, pla, bluecard_no
FROM attendance
WHERE classno = $id
ORDER BY bluecard_no";
$res = $link->query($sql);
$sid='';
$tdata = '';
while (list($d, $sn, $s, $bcn) = $res->fetch_row()) {
if ($sid != $sn) {
if ($sid) {
$tdata .= "<tr><td>$sid</td><td>" . join('</td><td>', $rowdata). "</td></tr>\n";
}
$rowdata = $emptyRow;
$sid = $sn;
}
$rowdata[$d] = $s;
}
$tdata .= "<tr><td>$sid</td><td>" . join('</td><td>', $rowdata). "</td></tr>\n";
$tdata .= "</table\n";
echo $heads;
echo $tdata;
?>

Answer 1

SELECT c.olumns
, y.ou
, a.ctually
, w.ant
FROM students s
JOIN attendance a
ON a.classno = s.classno
WHERE s.classno = :id
ORDER
BY s.bluecard_no ASC
, a.date";

Answer 2

public function get_members_for_attendence()
{
$date = $this->input->post('choose_date');
$sql = 'SELECT a.date, c.member_name,c.member_join_date,c.member_payment_date,c.member_exp_date,c.member_payment_date,c.member_contact, c.member_reg_id,
CASE
WHEN a.status = "absent" THEN "Absent"
WHEN a.status = "present" THEN "Present"
ELSE "Not Taken"
END as attendence_status
FROM member_reg AS c
LEFT JOIN attendence AS a ON a.member_reg_id = c.member_reg_id AND a.date = "'.$date.'"';
$query = $this->db->query($sql);
return $query->result();
}
For CodeIgniter 3
it worked for me