Obtener las imagenes de responsive slider gallery

obtener-responsive-slider-gallery.php

<?php
/**
 * Plugin Name: Obtener las imagenes de responsive slider gallery
 * Author: Sergio (kallookoo)
 * Author URI: https://dsergio.com
 *
 * @package ORSG
 */

defined( 'ABSPATH' ) || exit;

add_action(
	'current_screen',
	function ( $screen ) {
		if ( 'edit-responsive_slider' === $screen->id ) {
			add_action(
				'admin_notices',
				function() {
					$slideid = ( isset( $_POST['orsg'] ) ? intval( $_POST['orsg'] ) : '' );
					?>
					<div class="notice">
						<p>Introducir el id del schortcode para obtener todas las imagenes.</p>
					<form method="POST">
						<input type="text" name="orsg" value="<?php echo esc_attr( $slideid ); ?>">
						<?php submit_button( 'Obtener', 'primary', 'submit', false ); ?>
					</form>
					<?php
					if ( $slideid ) :
						$slideids = unserialize(
							base64_decode(
								get_post_meta( $slideid, "awl_slider_settings_{$slideid}", true )
							)
						);
						$slideids = ( isset( $slideids['slide-ids'] ) ? $slideids['slide-ids'] : '' );
						$slideids = ( is_array( $slideids ) ? implode( ',', $slideids ) : '' );
						?>
						<p><pre><code>[gallery ids="<?php echo esc_attr( $slideids ); ?>"]</code></pre></p>
						<?php endif; ?>
					</div>
					<?php
					unset( $slideid, $slideids );
				}
			);
		}
	}
);