Creating table from multidimention array - php

Question

I have multidimensional arrays with which I need to make a table in html. I have a problem with matching catalog numbers with dates in the table.
I created an array (little part of it below):
array cotains date => CatalogNo => [catalogNo],[count],[date]
Array
(
[2019/07/19] => Array
(
[71156] => Array
(
[catalogNo] => 71156
[count] => 22
[date] => 2019/07/19
)
[71157] => Array
(
[catalogNo] => 71157
[count] => 21
[date] => 2019/07/19
)
[71221] => Array
(
[catalogNo] => 71221
[count] => 217
[date] => 2019/07/19
)
)
[2019/07/18] => Array
(
[71156] => Array
(
[catalogNo] => 71156
[count] => 26
[date] => 2019/07/18
)
[71157] => Array
(
[catalogNo] => 71157
[count] => 25
[date] => 2019/07/19
)
[71221] => Array
(
[catalogNo] => 71221
[count] => 281
[date] => 2019/07/19
)
[71222] => Array
(
[catalogNo] => 71221
[count] => 173
[date] => 2019/07/19
)
...
I did something like this but this is just bad. I dont know how to do it actually.
$dane_arr <- this is the whole array
<table>
<tr>
<th>CatalogNo</th>
<?php
foreach( $dane_arr as $k => $v )
{
?>
<th><?php echo $k ?></th>
<?php
}
?>
</tr>
<?php
foreach( $dane_arr as $k_date => $date_ )
{
foreach( $date_ as $k_nrArt_ => $nrArt_ )
{ ?>
<tr>
<td><?php echo $nrArt_['catalogNo'] ?></td>
<td><?php echo $nrArt_['count'] ?></td>
</tr>
<?php
}
}
?>
`
There are duplicates in CatalogNo and of course dates doesn't fit.
I want to create table, something like that:
CatalogNo | 2019/07/18 | 2019/07/19 | ...
71156 26 22 ...
71157 25 21 ...
71221 281 217 ...
71222 173 0 ...
(Of course without duplicates in 'CatalogNo')

Answer 1

You would first need to rearrange your array. Then you get all dates, and create the table:
<?php
$catalogUsage = [];
foreach ($dane_arr as $date => $catalogs) {
foreach( $catalogs as $catalogNo => $catalog) {
$catalogUsage[$catalogNo][$date] = $catalog['count'];
}
}
$allDates = array_keys($dane_arr);
?>
<table>
<tr>
<th>CatalogNo</th>
<?php
foreach ($allDates as $date) {
echo "<th>$date</th>"
}
?>
</tr>
<?php
foreach($catalogUsage as $catalogNo => $counts)
{
echo "<tr><td>$catalogNo</td>";
foreach ($allDates as $date) {
echo "<td>" . (isset($counts[$date]) ? $counts[$date] : 0) . "</td>";
}
echo "</tr>";
}
?>
</table>
Code is untested, since I haven't got the original array, so bugs might exist. I just hope this gives you some new inspiration.