Display each color separate with values - php

Question

I am having trouble in printing values from database.
ITEM TABLE
ITEM | COLOR | MATERIAL | DIMENSIONS | CATEGORY | QUANTITY
- 01 33 05 111 12 1000.00
- 02 33 07 125 18 200.00
- 03 33 11 156 18 254.00
- 04 56 15 25 66 113.00
- 05 66 05 11 33 521.00
I am trying to print values in table(for each color print material dimension category)
So the output will be:
COLOR - > 33
MATERIAL | DIMENSION | CATEGORY | QUANTITY
05 111 12 1000.00
07 125 18 200.00
11 156 18 254.00
COLOR - > 56
MATERIAL | DIMENSION | CATEGORY | QUANTITY
15 25 66 113.00
COLOR - > 66
MATERIAL | DIMENSION | CATEGORY | QUANTITY
05 11 33 521.00
I am using query
$query = "SELECT a.itemnb, b.colorname, c.materialname, d.categoryname, sum(a.quantity) as quantity
FROM dbo_items a
JOIN dbo_color b
ON a.color=b.colorid
JOIN dbo_material c
on a.material=c.material
JOIN dbo_category
on a.category=d.categoryid
GROUP BY b.colorname, c.materialname, d.categoryname, ";
I am using PDO.
$q=$conn->query($query);
Now I can fetch all values in table, but that is not actually I want to make.
<table class="table table-bordered table-striped">
<thead>
<tr class="bg-primary">
<td data-field="color">COLOR</td>
<td data-field="material">MATERIAL</td>
<td data-field="dim">DIMENSIONS</td>
<td data-field="quantity">QUANTITY</td>
</tr>
</thead>
<tbody>
<?php while ($r = $m->fetch()){?>
<tr>
<td><?=$r['colorname']?></td>
<td><?=$r['materialname']?></td>
<td><?=$r['categoryname']?></td>
<td><?=$r['quantity ']?></td>
<?php } ?>
</tbody>
</table>
I want to print first color and then all material related to that color.
I am having trouble there, any help or advice is appreciated?

Answer 1

First remove the colorname field from group by clause in query and add this column with order by means add order by colorname in query.
And then change from HTML and php code with the following:
<table class="table table-bordered table-striped">
<thead>
<tr class="bg-primary">
<td data-field="color">COLOR</td>
<td data-field="material">MATERIAL</td>
<td data-field="dim">DIMENSIONS</td>
<td data-field="quantity">QUANTITY</td>
</tr>
</thead>
<tbody>
<?php
$tempColor = '';
while ($r = $m->fetch()){
if($tempColor != $r['colorname']) {
?>
<tr><td colspan="4">Color Name: <?=$r['colorname']?></td></tr>
<?php $tempColor = $r['colorname'];
} else {
?>
<tr>
<td><?=$r['colorname']?></td>
<td><?=$r['materialname']?></td>
<td><?=$r['categoryname']?></td>
<td><?=$r['quantity ']?></td>
<?php }
}
?>
</tbody>
</table>

Answer 2

You have to ORDER BY 'COLOR' and not to GROUP BY 'COLOR'
After that yout test if you are switching to a new color
<?php
<table class="table table-bordered table-striped">
<thead>
<tr class="bg-primary">
<td data-field="color">COLOR</td>
<td data-field="material">MATERIAL</td>
<td data-field="dim">DIMENSIONS</td>
<td data-field="quantity">QUANTITY</td>
</tr>
</thead>
<tbody>
<?php
$prevColor = '';
while ($r = $m->fetch()){?>
<tr>
<td><? print ($prevColor == $r['colorname'] ? '' : $r['colorname']) ?></td>
<td><? print $r['materialname']?></td>
<td><? print $r['categoryname']?></td>
<td><? print $r['quantity ']?></td>
<?php
$prevColor = $r['colorname'];}
?>
</tbody>
</table>
UPDATE
If you can not change your query, so you have to order by COLOR your resultset

Answer 3

Check if the current colorname is equal to the previous one:
<?php
$currcolor=array();
$i=0;
while ($r = $m->fetch()){
$currcolor[$i]=$r['colorname']; ?>
<tr>
<td>
<?php if($currcolor[$i] != $currcolor[$i-1]){
echo $currcolor[$i];
} ?>
</td>
<td><?php echo $r['materialname']; ?></td>
<td><?php echo $r['categoryname']; ?></td>
<td><?php echo $r['quantity ']; ?></td>
<?php
$i++;
} ?>

Answer 4

The easiest approach is to make one query for getting all colors, then you can make loop for result from first query and use another query for getting all information related to specific color.
Example:
$q = 'SELECT * FROM dbo_color';
$q=$conn->query($query);
while ($res = $q->fetch()){
$secondQ = 'SELECT * FROM relatedMaterials WHERE color = ' . $res->color;
}
And include in this query all html you need for creating table.
I hope this will help you.