Register Helper Dropdown

register_helper_dropdown.php

<?php
//add lines 5 onwards to your custom PMPro plugin -> http://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
//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();
    $fields[] = new PMProRH_Field(
    "state",
    "select",
    array(
    "options"=>array(
      ""=>"", //blank by default
      "Utah"=>"Utah",
      "Vermont"=>"Vermont",
      "Virgina"=>"Virginia",
      "Washington"=>"Washington",
      "West_Virginia"=>"West_Virginia",
      "Wisconsin"=>"Wisconsin",
      "Wyoming"=>"Wyoming"),
    "size"=>40,
    "class"=>"State",
    "label"=>"State",
    "profile"=>true,
    "required"=>true
));
    //add the fields into a new checkout_boxes are of the checkout page
    foreach($fields as $field)
        pmprorh_add_registration_field(
            "after_billing_fields", // 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");