Sample RH custom fields

my_pmprorh_init.php

<?php
/*
Plugin Name: PMPro Customizations
Plugin URI: https://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: Customizations for my Paid Memberships Pro Setup
Version: .1
Author: Paid Memberships Pro
Author URI: https://www.paidmembershipspro.com
*/

//Now start placing your customization code below this line

function my_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(
		'biz_name',       // input name, will also be used as meta key
		'text',          // type of field
		array(
			'label'    => 'Business Name',
			'html_attributes' => array( 'placeholder' => 'e.g., Example' ), // add valid html input field attributs
			'hint'            => 'This is a hint', // display a hint under field YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'levels'          => array( 2,3 ), // restricts levels to display field for YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'class'           => 'css_class_name', // custum class for input field YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'divclass'        => 'css_class_name_for_div', // custom class for container div YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'size'            => 40, // field width
			'profile'         => true, // show on profile
			'memberslistcsv'  => true, // include when using export members to csv
			'addmember'       => true, // include when using add member from admin
			'required'        => true, // make field required
		)
	);

	$fields[] = new PMProRH_Field(
		'contact_number',       // input name, will also be used as meta key
		'text',            // type of field
		array(
			'label'    => 'Contact Number',
			'html_attributes' => array( 'placeholder' => 'e.g., Example' ), // add valid html input field attributs
			'hint'            => 'This is a hint', // display a hint under field YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'levels'          => array( 2,3 ), // restricts levels to display field for YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'class'           => 'css_class_name', // custum class for input field YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'divclass'        => 'css_class_name_for_div', // custom class for container div YOU CAN REMOVE THIS LINE IF NOT NEEDED
			'profile'         => true, // show on profile
			'memberslistcsv'  => true, // include when using export members to csv
			'addmember'       => true, // include when using add member from admin
			'required'        => true, // make field required
		)
	);

	foreach ( $fields as $field ) {
		pmprorh_add_registration_field(
			$field->location, // 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', 'my_pmprorh_init' );