tags.php

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<?php

if (isset($vars['entity'])) {
    $vars['tags'] = elgg_extract('entity', $vars)->tags;
    unset($vars['entity']);
}

$value = elgg_extract('value', $vars);
unset($vars['value']);
if (empty($vars['tags']) && (!empty($value) || $value === 0 || $value === '0')) {
    $vars['tags'] = $value;
}

if (empty($vars['tags']) && $value !== 0 && $value !== '0') {
    return;
}

$tags = elgg_extract('tags', $vars);
unset($vars['tags']);

if (!is_array($tags)) {
    $tags = [$tags];
}

$list_class = elgg_extract_class($vars, 'elgg-tags', 'list_class');
unset($vars['list_class']);

$item_class = elgg_extract_class($vars, 'elgg-tag', 'item_class');
unset($vars['item_class']);

$icon_name = elgg_extract('icon', $vars, 'tag');
unset($vars['icon']);

$icon_class = elgg_extract_class($vars, [], 'icon_class');
unset($vars['icon_class']);

if ($icon_name === false) {
    $icon = '';
} else {
    $icon = elgg_view_icon($icon_name, ['class' => $icon_class]);
}

$separator = elgg_extract('separator', $vars, ', ');
unset($vars['separator']);

$list_items = [];

$params = $vars;
foreach ($tags as $tag) {
    if (is_scalar($tag) && elgg_strlen($tag) > 0) {
        $params['value'] = $tag;
        $tag_view = elgg_view('output/tag', $params);
        $list_items[] = elgg_format_element('span', ['class' => $item_class], $tag_view);
    }
}

if (empty($list_items)) {
    return;
}

echo elgg_format_element('div', ['class' => $list_class], $icon . implode($separator, $list_items));