echo a multidimensional array into multiple html table rows - php

Question

I have a query that I'm running and it will output an unknown number of results. I want to display these results in a table of 5 columns. So I need the array print until the sixth result and then start a new row.
The way I tried to do it was to take the original array and chunk it into blocks of 5.
$display=array_chunk($row_Classrooms,5);
which gives me an array like this.
Array (
[0] => Array (
[0] => Array (
[id_room] => 1
[Name] => Classroom 1
[class] => Yes
)
[1] => Array (
[id_room] => 5
[Name] => Classroom 2
[class] => Yes
)
[2] => Array (
[id_room] => 6
[Name] => Classroom 3
[class] => Yes
)
[3] => Array (
[id_room] => 7
[Name] => Classroom 4
[class] => Yes
)
[4] => Array (
[id_room] => 8
[Name] => Classroom 5
[class] => Yes
)
)
[1] => Array (
[0] => Array (
[id_room] => 9
[Name] => Classroom 6
[class] => Yes
)
)
)
I'm then trying to echo this out with a pair of while loops, like such.
while ($rows = $display) {
echo '<tr>';
while ($class = $rows) {
echo'<td>'.$class['name'].'<br>
<input name="check'.$i.' type="checkbox" value="'.$class['id_room'].'></td>';
$i++;
}
echo '</tr>';
}
When I run this it apparently gets stuck in a never ending loop because nothing gets displayed but the browser just keeps chewing up more and more memory :)

Answer 1

The while statements are wrong. Have a look at here - in your while-statement you are always assigning the complete $display - not one entry.
You could try using while(($rows = array_shift($display)) !== false) - that will always get the first array item until there are no more items.
The same case in the second while-statement.

Answer 2

I ended up replacing the while loops with foreach loops instead which solved the issue.
foreach ($display as $rows) {
echo '<tr class="popup">';
foreach($rows as $class) {
if(isset($row_Rego)){
$exist=NULL;
$exist=array_search($class['id_room'], array_column($row_Rego, 'id_room'));
}