Add billing fields, with dropdown for country, to the Membership Profile page

add-billing-to-add-member-and-profile.php

<?php

/**
 * This recipe adds billing fields to the Membership Profile page.
 *
 * It is intended for use with the Register Helper Add On:
 * https://www.paidmembershipspro.com/add-ons/pmpro-register-helper-add-checkout-and-profile-fields/
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 *
 * Based on https://gist.github.com/andrewlimaza/e17a82948542e0a036446ee15b1bf014
 */

function add_billing_fields_to_add_member_profile() {
	// we will use PMPro's list of countries
	global $pmpro_countries;

	//check for register helper
	if ( ! function_exists( "pmprorh_add_registration_field" ) ) {
		return;
	}

	//define the fields
	$fields = array();
	$fields[] = new PMProRH_Field("pmpro_baddress1", "text", array("label"=>"Billing Address 1", "size"=>40, "profile"=>true, "required"=>false, "addmember" => true));
	$fields[] = new PMProRH_Field("pmpro_baddress2", "text", array("label"=>"Billing Address 2", "size"=>40, "profile"=>true, "required"=>false, "addmember" => true));
	$fields[] = new PMProRH_Field("pmpro_bcity", "text", array("label"=>"Billing City", "size"=>40, "profile"=>true, "required"=>false, "addmember" => true));
	$fields[] = new PMProRH_Field("pmpro_bstate", "text", array("label"=>"Billing State", "size"=>10, "profile"=>true, "required"=>false, "addmember" => true));
	$fields[] = new PMProRH_Field("pmpro_bzipcode", "text", array("label"=>"Billing Postal Code", "size"=>10, "profile"=>true, "required"=>false, "addmember" => true));
	// prepare countries for dropdown
	$options = array();
	foreach($pmpro_countries as $abbr => $country) {
		$options[$abbr] = $country;
	}
	$fields[] = new PMProRH_Field(
		"pmpro_bcountry",
		"select",
		array(
			"label" => "Billing Country",
			"profile" => true,
			"required" => false,
			"addmember" => true,
			"options" => $options,
		)
	);
	$fields[] = new PMProRH_Field("pmpro_bphone", "text", array("label"=>"Billing Phone", "size"=>40, "profile"=>true, "required"=>false, "addmember" => true));	
	
	//add the fields into a new checkout_boxes are of the checkout page
	foreach ( $fields as $field ) {
		pmprorh_add_registration_field("profile", $field);
	}
}
add_action( "init", "add_billing_fields_to_add_member_profile" );