Register Helper Example

my_pmprorh_init.php

<?php
/*
 * Example Register Helper fields for Company, Referral Code, and Budget.
 *
 */

// We have to put everything in a function called on init, so we are sure Register Helper is loaded.
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(
		'company',							// input name, will also be used as meta key
		'text',								// type of field
		array(
			'label'		=> 'Company',		// custom field label
			'size'		=> 40,				// input size
			'class'		=> 'company',		// custom class
			'profile'	=> true,			// show in user profile
			'required'	=> true,			// make this field required
			'levels'		=> array(1,2)	// only levels 1 and 2 should have the company field
		)
	);
	$fields[] = new PMProRH_Field(
		'referral',							// input name, will also be used as meta key
		'text',								// type of field
		array(
			'label'		=> 'Referral Code',	// custom field label
			'profile'	=> 'only_admin'		// only show in profile for admins
		)
	);
	$fields[] = new PMProRH_Field(
		'budget',							// input name, will also be used as meta key
		'select',							// type of field
		array(
			'options' => array(				// <option> elements for select field
				''		=> '',				// blank option - cannot be selected if this field is required
				'lessthan2000'	=> '&lt; $2,000',		// <option value="lessthan2000">&lt; $2,000</option>
				'2000to5000'	=> '$2,000-$5,000',		// <option value="2000to5000">$2,000-$5,000</option>
				'5000to10000'	=> '$5,000-$10,000',	// <option value="5000to10000">$5,000-$10,000</option>
				'morethan10000'	=> '&gt; $10,000',		// <option value="morethan10000">&gt; $10,000</option>
			)
		)
	);

	// 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' );

PMPro 2.9 includes user fields and changes some of the functions that would be used to create fields via code. The old Register Helper ones will still work for a while, but will eventually be deprecated.

You can see the new snippet here: https://github.com/strangerstudios/pmpro-snippets-library/blob/dev/user-fields/add-user-fields.php