Add a new shortcode for copyright year

Add a new, automatically updating copyright year shortcode.

README.md

@@ -92,6 +92,14 @@ Change WordPress link text to be “Proudly designed with WordPress”:
 <!-- /wp:shortcode -->
 ```
 
+Add a copyright year in the format “© 2024”:
+
+```html
+<!-- wp:shortcode -->
+[team51-copyright-year]
+<!-- /wp:shortcode -->
+```
+
 
 
 Installation
@@ -122,3 +130,8 @@ git submodule add https://github.com/a8cteam51/colophon mu-plugins/colophon
 ```
 
 Then we create a pull request as needed and integrate it as above.
+
+
+### Updates
+
+* v1.2.0 Add a new shortcode for showing the copyright year.

colophon.php

@@ -3,7 +3,7 @@
 Plugin Name: Colophon
 Plugin URI: https://github.com/a8cteam51/colophon
 Description: Sets Team 51 footer links to WordPress.com and Pressable.
-Version: 1.1.0
+Version: 1.2.0
 Author: WordPress.com Special Projects
 Author URI: https://wpspecialprojects.wordpress.com/
 License: GPLv3
@@ -128,3 +128,25 @@ function () {
 		}
 	);
 endif;
+
+if ( ! function_exists( 'team51_copyright_shortcode' ) ) :
+
+	/**
+	 * The Shortcode for `[team51-copyright-year]`.
+	 *
+	 * Can also be used in the Shortcode block.
+	 *
+	 * @return string
+	 */
+	function team51_copyright_shortcode() {
+		$current_year = gmdate( 'Y' );
+		$output       = "© $current_year";
+		return esc_html( $output );
+	}
+	add_action(
+		'init',
+		function () {
+			add_shortcode( 'team51-copyright-year', 'team51_copyright_shortcode' );
+		}
+	);
+endif;