Register Helper custom fields for irishhealer.

irishhealer_pmprorh_init.php

<?php
/**
 * Register Helper custom fields for irishhealer.
 */
function irishhealer_pmprorh_init() {
	// Don't break if Register Helper is not loaded.
	if ( ! function_exists( 'pmprorh_add_registration_field' ) ) {
		return false;
	}

	$indemnity_consent_content = get_post_field( 'post_content', 743 );

	// Define the fields.
	$fields = array();
	$fields[] = new PMProRH_Field( 'junior_first_name', 'text', array( 'label' => 'First Name (Junior)', 'levels' => array( '2' ), 'profile' => true, 'required' => true ) );
	$fields[] = new PMProRH_Field( 'junior_first_name', 'text', array( 'label' => 'Last Name (Junior)', 'levels' => array( '2' ), 'profile' => true, 'required' => true ) );
	$fields[] = new PMProRH_Field( 'indemnity_consent_textarea', 'html', array( 'name' => '<textarea>' . $indemnity_consent_content . '</textarea>' ) );
	$fields[] = new PMProRH_Field( 'indemnity_consent', 'checkbox', array( 'label' => 'I agree to the Indemnity Statement.', 'levels' => array( '2' ), 'profile' => true, 'required' => true ) );
	$fields[] = new PMProRH_Field( 'signed_medical_declaration', 'file', array( 'label' => ' Upload your signed Medical Declaration.', 'profile' => true, 'required' => true ) );

	pmprorh_add_checkout_box( 'information', 'Additional Information' );

	foreach ( $fields as $field ) {
		pmprorh_add_registration_field( 'information', $field );
	}
}
add_action( 'init', 'irishhealer_pmprorh_init' );