Joomla 2.5.x. How to sort K2 tags

This tutorial is going to show you how to sort the default gallery tags on your Joomla 2.5 template.

1. On your FTP server go to the templates\theme_###\html\com_k2\templates\portfolio\ folder.
2. Open a category.php in any PHP editor.
3. Look for the following line using Ctrl + F:
   $tags = array_unique($allTags);
4. Add a new function right under that line:

rsort($tags);

in order to sort the tags in the reverse  alphabetical order or

sort($tags);

in order to sort the tags alphabetically

5. Save the changes and check the gallery page on your site.

Feel free to check the detailed video tutorial below:

Joomla 2.5.x. How to sort K2 tags