Shortcode to display a series' list of articles with their available date. #pmpro_series #shortcode

my-pmpro-series-shortcode.php

<?php
/**
 * This recipe creates a shortcode that shows the list of articles for a specific series.
 * Use [pmpro_series id="n"] on any page/post to display a list of posts that belong to a series.
 * The attribute "id" is the post ID of the series and is required, e.g [pmpro_series id="123"]
 *
 * This recipe assumes the site has the PMPro Series: Drip Feed Add On active.
 * @link https://www.paidmembershipspro.com/add-ons/pmpro-series-for-drip-feed-content/
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmpro_series_shortcode( $atts ) {
	if ( ! function_exists( 'pmpros_the_content' ) ) {
		return false;
	}

	global $post;
	extract(
		shortcode_atts(
			array(
				'id' => $post->ID,
			),
			$atts
		)
	);

	//start output buffering
	ob_start();
	$series = new PMProSeries( $id );
	$series->getPostList( true ); //true echoes post list
	$temp_content = ob_get_contents();
	ob_end_clean();

	return $temp_content;
}
add_shortcode( 'pmpro_series', 'my_pmpro_series_shortcode' );