Invision Power Services, Inc. * @copyright (c) Invision Power Services, Inc. * @license https://www.invisioncommunity.com/legal/standards/ * @package Invision Community * @since 10 Mai 2022 */ namespace IPS\Helpers\Form\Captcha; /* To prevent PHP errors (extending class does not exist) revealing path */ if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) ) { header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' ); exit; } /** * captcha Interface */ interface CaptchaInterface { /** * Display * * @return string */ public function getHtml(); /** * Verify * * @return bool|null TRUE/FALSE indicate if the test passed or not. NULL indicates the test failed, but the captcha system will display an error so we don't have to. */ public function verify(); }