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WordPress ‘Easy Copyright’ plugin is used to add copyright to your site using shortcode via admin-panel.
You can add, edit, delete copyrights in <code>Easy Copyright</code> wordpress submenu.
In order to add copyright you need to press <code>Add New Copyright</code> button in the specified menu and fill required fields.
<h3>Tabs</h3>
When you add copyright, you can see two tabs.
<ul>
<li>Information</li>
<li>Item Order</li>
</ul>
Information Tab — Information about copyright (Copyright Name, Start Year, etc.)
Item Order — Copyright component display order (E.g. [copyright_name] [start_year] — [end_year] … )
Note: You can add additional text in item order tab.
<h3>How to use?</h3>
When you save copyright, shortcode displays.
You can use shortcode in wordpress editors or in php code.
In WordPress Editors: 
 <code>[easy-copyright id='COPYRIGHT_ID_HERE']</code> 
In PHP Code: 
 <code>do_shortcode( "[easy-copyright id='COPYRIGHT_ID_HERE']" );</code>

Easy Copyright

WordPress plugin that allows you to add copyrights to the site using shortcodes

miniweblab

The easiest way displaying current year and copyright symbol and since year in your copyright footer text or wherever else you like on your site. 
Just use shortcodes [Y] for current year and [C] for copyright symbol after plugin activation.
If you need to display the current year, and have it always kept up to date, inserting this plugin’s [y] or [y] shortcode anywhere on your web site will do just that.
If you need to display an official Copyright notice, inserting this plugin’s [C] or [c] shortcode provides the official C with a circle around it (“©”) required legally in many countries to Copyright many forms of intellectual property.
Other shortcodes of this plugin: 
* Use [cy] or [CY] to display copyright symbol © and the current year together. 
* Use [cc] or [CC] to display copyright symbol © and the word “Copyright”. 
* Use [csy since=”2016″] to display the symbol of copyright, first year and current year (Assuming it is currently the year 2019 ex. © 2016-2019). 
* Use [ccsy since=”2016″] to display the symbol of copyright (©) and the word “Copyright”, first year and current year (Assuming it is currently the year 2019 ex. © Copyright 2016-2019).

Snappy Year Shortcode

The easiest way displaying current year, copyright symbol and since year with shortcode.

Easy Copyright vs Snappy Year Shortcode