Shortcode to get Member RSS Key

pmpro-rss-key-shortcode.php

<?php

/**
 * Custom shortcode to get PMPro RSS Member Key.
 * Example 1: [pmpro_rss_key] This will return the key for current member.
 * Example 2: [pmpro_rss_key user_id="2"] This will return the key for user ID 2.
 * Copy from line 3 onwards into your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
 
function pmprorss_shortcode_get_key( $atts ) {

	$attributes = shortcode_atts( array(
			'user_id' => ''
		), 
		$atts
	);
	
	if ( empty( $attributes['user_id'] ) ) {
		global $current_user;
		$user_id = $current_user->ID;
	}else{
		$user_id = intval( $attributes['user_id'] );
	}

	$key = pmpromrss_getMemberKey( $user_id );

	return $key;
}
add_shortcode( 'pmpro_rss_key', 'pmprorss_shortcode_get_key' );