How To Make Checkboxlist?

This guide will show you how to make checkboxlist – inspired by Jordan Ivanov:
The first thing you need to do is to modify K2 and Joomla! core files. All files are attached to this post.
1. In /libraries/joomla/html/html/select.php after line 125
2. In /administrator/components/com_k2/models/extrafield.php in lines: 60, 298, 224
3. In /administrator/components/com_k2/views/extrafield/view.html.php in line 47
4. In /administrator/components/com_k2/views/extrafields/view.html.php in line 72
5. In /media/k2/assets/js/k2.js in line 523
6. In /components/com_k2/models/item.php in line 1035
7.In /administratorllanguage/en-GB/en-BG.com_k2.ini in line 445

Next, you unpack in some safe place, at the same time, you check all changes after uploading all files into your server.
Note: We discourage hacking K2 or Joomla! core.

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Welcome to LT Digital Team, we're small team with 5 digital content marketers. We make daily blogs for Joomla! and WordPress CMS, support customers and everyone who has issues with these CMSs and solve any issues with blog instruction posts, trusted by over 1.5 million readers worldwide.

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