Set the browser details "HTTP_USER_AGENT" in a Caldera Forms hidden field

cf-set-browser-details.php

<?php
/*
 *  Set the HTTP_USER_AGENT as the value of a hidden field during submission
 *  In this case the hidden field ID is fld_7526079, that needs to be edited
 */
add_filter( 'caldera_forms_process_field_hidden', function( $value, $field )  {
	//Change your field ID here
	if( $field['ID'] === "fld_7526079" ){
		
		$value = $_SERVER['HTTP_USER_AGENT'];
	}
	return $value;
}, 10, 2);