oaf-restrict-partial-content-shortcode-part2.php

<?php
/*
* Plugin Name: OAF Restrict Partial Content Shortcode
* Plugin URI: https://www.oscarabadfolgueira.com/crear-shortcode-restringir-partes-del-contenido
* Description: This plugin creates a [restrict_pcs] that you can use to restrict some contents of your posts or pages.
* Version: 1.2
* Author: Oscar Abad Folgueira
* Author URI: https://www.oscarabadfolgueira.com
* License: GPLv2 only
* License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/

// If this file is called directly, abort.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

function oaf_restrict_partial_content_shortcode( $atts, $content = null ) {
	if ( is_user_logged_in() && !is_null( $content ) && !is_feed() ) {
		return $content;
	} else {
	  
		return '<div style="background-color: #F5F2F2; padding: 5%;"><h4 style="color: red; text-align: center;">Upps, Este contenido sólo está disponible para usuarios registrados</h4></div>';
	}
}

add_shortcode ('restrict_pcs', 'oaf_restrict_partial_content_shortcode' );