Register Helper example: custom taxonomy select2 field

custom_taxonomy_rh_field.php

<?php

    // Get custom taxonomy terms.
    $cause_categories = get_terms( array(
        'taxonomy' => 'cause-category',
    ) );
    
    $options = array();
    foreach ( $cause_categories as $key => $category ) {
        $options[$category->term_id] = $category->name;
    }
    
    $fields[] = new PMProRH_Field('cause_category', 'select2', array(
        'label' => 'Cause Category',
        'profile' => true,
        'options' => $options,
        )
    );