Sample code to add to PMPro Customizations plugin designed to illustrate fields added with Register Helper plugin

pmpro-pbrx-register-helper-sample-fields.php

<?php
/**
* Sample code to add to PMPro Customizations plugin designed to illustrate fields added with Register Helper plugin
*/
//we have to put everything in a function called on init, so we are sure Register Helper is loaded
function pbrx_pmprorh_init() {
	//don't break if Register Helper is not loaded
	if ( ! function_exists( 'pmprorh_add_registration_field' ) ) {
	    return false;
	}
	//define the fields
	$fields = array();
	$fields[] = new PMProRH_Field(
		'pet',
		'select', array(
			'label' => 'I have a:',
			'options' => array(
				'' => 'Select',
				'cat' => 'Cat',
				'dog' => 'Dog',
			),
		)
	);
	$fields[] = new PMProRH_Field(
	    'cat_name',
	    'text',
	    array(
			'depends' => array(
				array(
					'id' => 'pet',
					'value' => 'cat',
					),
			),
			'label' => 'Cat\'s Name',
		)
	);
	$fields[] = new PMProRH_Field(
	    'dog_name',
	    'text',
	    array(
		'depends' => array(
			array(
				'id' => 'pet',
				'value' => 'dog',
			),
		),
		'label' => 'Dog\'s Name',
		)
	);
	$fields[] = new PMProRH_Field(
		'my_pdf',              // input name, will also be used as meta key
		'file',                 // type of field
		array(
			'label'   => 'Upload PDF',
			'hint'    => 'Please upload only .PDF files',
			'profile' => true,    // show in user profile
	    )
	);
	//add the fields into a new checkout_boxes are of the checkout page
	foreach ( $fields as $field ) {
		pmprorh_add_registration_field(
			'checkout_boxes', // location on checkout page
			$field           // PMProRH_Field object
		);
	}
	//that's it. see the PMPro Register Helper readme for more information and examples.
}
add_action( 'init', 'pbrx_pmprorh_init' );