You can implement additional security measures, such as limiting the number of form submissions from a single IP address. This helps prevent spam and abuse.
add_action('gform_after_submission', 'codebykp_limit_submissions_by_ip', 10, 2);
function codebykp_limit_submissions_by_ip($entry, $form) {
$ip_address = $_SERVER['REMOTE_ADDR'];
$submissions = GFAPI::get_entries($form['id'], array('field_filters' => array(array('key' => 'ip_address', 'value' => $ip_address))));
if (count($submissions) >= 5) { // Limit to 5 submissions
wp_die('You have reached the maximum number of submissions from this IP address.');
}
// Save the IP address in the entry meta
GFAPI::update_entry_property($entry['id'], 'ip_address', $ip_address);
}
