WordPress plugin to remove empty paragraph tags from shortcodes in WordPress.

remove-empty-p-tags.php

<?php

/**
 * Remove Empty Paragraph Tags
 *
 * @package           RemoveEmptyParagraphTags
 * @author            Micah Wood
 * @copyright         Copyright 2021 by Micah Wood - All rights reserved.
 * @license           GPL2.0-or-later
 *
 * @wordpress-plugin
 * Plugin Name:       Remove Empty Paragraph Tags
 * Plugin URI:
 * Description:       Removes empty paragraph tags from WordPress.
 * Version:           1.0
 * Requires PHP:      5.6
 * Requires at least: 5.0
 * Author:            Micah Wood
 * Author URI:        https://wpscholar.com
 * Text Domain:       remove-empty-p-tags
 * Domain Path:       /languages
 * License:           GPL V2 or later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 */

/**
 * Removes empty paragraph tags from shortcodes in WordPress.
 *
 * @param $content
 *
 * @return string
 */
function tg_remove_empty_paragraph_tags_from_shortcodes_wordpress( $content ) {
	$toFix = array(
		'<p>['    => '[',
		']</p>'   => ']',
		']<br />' => ']'
	);
	return strtr( $content, $toFix );
}

add_filter( 'the_content', 'tg_remove_empty_paragraph_tags_from_shortcodes_wordpress' );