field.php

<?php
/**
 * Check if a Caldera Forms field contains PII
 */
//Get Form
//IMPORTANT: change form ID
$form_id = 'cf1234HiRoy';
$form = Caldera_Forms_Forms::get_form( $form_id );

//Check if field is personally identifying, by field ID
$is_personally_identifying = Caldera_Forms_Field_Util::is_personally_identifying( 'fld12345', $form );
//Check if field is personally identifying, by field slug
$is_personally_identifying = Caldera_Forms_Field_Util::is_personally_identifying( Caldera_Forms_Field_Util::get_field_by_slug( 'field_slug', $form ), $form );

form.php

<?php
/**
 * Find fields in a Caldera Forms form that contains PII
 */
//Get Form
//IMPORTANT: change form ID
$form_id = 'cf1234HiRoy';
$form = Caldera_Forms_Forms::get_form( $form_id );

//Get array of fields with PII
$personally_identifying_fields = Caldera_Forms_Forms::personally_identifying_fields($form);