Example for adding State, City and Phone number fields using the PMPro Customizations plugin

pmpro-customizations-rh-state-city-phone.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;
	}
	$fields = array();
	$fields[] = new PMProRH_Field(
		'state',
		'text',
		array(
			'label' => 'State',
			'required' => true, // make this field required
			'profile' => true, // show in user profile
			// 'memberslistcsv' => true, // Uncomment to include in Memberlist CSV
			// "addmember" => true, // Uncomment if using the Admin Add Member plugin
		)
	);
	$fields[] = new PMProRH_Field(
		'City', // input name, will also be used as meta key
		'text', // type of field
		array(
			'label'     => 'City', // custom field label
			'required'  => true, // make this field required
			'profile'   => true, // show in user profile
			// 'memberslistcsv' => true, // Uncomment to Include in Member List CSV Export
			// 'addmember' => true, // Uncomment to display in Add Member
		)
	);
	$fields[] = new PMProRH_Field(
		'phone_number', // input name, will also be used as meta key
		'text', // type of field
		array(
			'label'     => 'Phone Number', // custom field label
			'required'  => true, // make this field required
			'profile'   => true, // show in user profile
			// 'memberslistcsv' => true, // Uncomment to Include in Member List CSV Export
			// 'addmember' => true, // Uncomment to display in Add Member
		)
	);
	//add the fields into a new checkout_boxes are of the checkout page
	foreach($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', 'my_pmprorh_init' );