How to output functions from plugin inside theme

Question

I am using a plugin Chargebee WP Membership to connect up to their API to process payments. At the moment they are only using shortcodes to restrict content.

What I am trying to do, is output the functions of these shortcodes inside the page template. So far I've attempted the do_shortcode method but would rather access the function directly.

Github file: https://github.com/brendenplugin/chargebee-wp-membership-plugin/blob/master/admin/helper/class-chargebee-membership-shortcodes.php

For cb_content_show the shortcode format is currently:

[cb_content_show level="1"] This content will be shown to any users who have plan associated with Level 1 [/cb_content_show] 

What is the best method to access this function directly? I believe it derives from the function render_content_show_hide() - Line 707

public function render_content_show_hide( $attr, $content = null, $shortcode_name = '' ) { ...

Ideally I'd like to access as the function for example:

<?php
if (cb_content_show('level') == 1) :
//do something
endif; 
?>

Answer 1

Looks like function render_content_show_hide() is a method of class. If you want access this function directly - you can create new class instance.

If your plugin code looks like:

class Shortcode_Builder{
    //...methods
    public function render_content_show_hide( $attr, $content = null, $shortcode_name = '' ) { 
        //...
    }

    //...other methods.


}

Create new instance

$builder = new Shortcode_Builder();

And access to your function $builder->render_content_show_hide()

Answer 2

Managed to get it working by accessing the get_user_meta values.

<?php    
$user_id = get_current_user_id();
$key = 'chargebee_user_subscriptions';
$all_meta_for_user = get_user_meta( $user_id, $key, true  );
print_r($all_meta_for_user);