mod/categories/views/default/categories/view.php


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<?php

$linkstr = '';
if (isset($vars['entity']) && $vars['entity'] instanceof ElggEntity) {

	$categories = $vars['entity']->universal_categories;
	if (!empty($categories)) {
		if (!is_array($categories)) {
			$categories = array($categories);
		}
		foreach($categories as $category) {
			$link = $vars['url'] . 'pg/categories/list/?category=' . urlencode($category);
			if (!empty($linkstr)) {
				$linkstr .= ', ';
			}
			$linkstr .= '<a href="'.$link.'">' . $category . '</a>';
		}
	}

}

echo $linkstr;