- $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
- $filteringTags = isset($_GET['searchtags']) ? explode(' ', $_GET['searchtags']) : [];
- $tags = $LINKSDB->linksCountPerTag($filteringTags, $visibility);
-
- // We sort tags alphabetically, then choose a font size according to count.
- // First, find max value.
- $maxcount = 0;
- foreach ($tags as $value) {
- $maxcount = max($maxcount, $value);
- }
-
- alphabetical_sort($tags, false, true);
-
- $tagList = array();
- foreach ($tags as $key => $value) {
- if (in_array($key, $filteringTags)) {
- continue;
- }
- // Tag font size scaling:
- // default 15 and 30 logarithm bases affect scaling,
- // 22 and 6 are arbitrary font sizes for max and min sizes.
- $size = log($value, 15) / log($maxcount, 30) * 2.2 + 0.8;
- $tagList[$key] = array(
- 'count' => $value,
- 'size' => number_format($size, 2, '.', ''),
- );
- }
-
- $searchTags = implode(' ', escape($filteringTags));
- $data = array(
- 'search_tags' => $searchTags,
- 'tags' => $tagList,
- );
- $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => $loginManager->isLoggedIn()));
-
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
-
- $searchTags = ! empty($searchTags) ? $searchTags .' - ' : '';
- $PAGE->assign('pagetitle', $searchTags. t('Tag cloud') .' - '. $conf->get('general.title', 'Shaarli'));
- $PAGE->renderPage('tag.cloud');