- array_column: documentation ( source)
- implode: documentation ( source)
<?php
$log = (object)[
'category' => [
(object)['category_name' => 'example1'],
(object)['category_name' => 'example2'],
(object)['category_name' => 'example3'],
]
];
?>
<td class="<?php echo empty($log->category) ? 'noactioncell ' : ''; ?>text-center align-middle">
<?php echo implode('<br/>', array_column($log->category ?? [], 'category_name')); ?>
</td>
----
<?php
unset($log);
?>
<td class="<?php echo empty($log->category) ? 'noactioncell ' : ''; ?>text-center align-middle">
<?php echo implode('<br/>', array_column($log->category ?? [], 'category_name')); ?>
</td>