ripro v5 登录注册，提示验证码错误

用的本站开心版，输入的都是对的，但就是提示 验证码错误！ /** * 获取图片验证码 * @Author Dadong2g * @date   2022-04-12 * @return [type] */ function get_img_captcha() {     $builder = new Gregwar\Captcha\CaptchaBuilder(4);     $builder->build();     $cache = $builder->getPhrase();     ZB_Cookie::set(‘img_captcha_code’, ZB_Code::enstr($cache));     return $builder->inline(); } function is_img_captcha($string = ”) {     $cache = ZB_Cookie::get(‘img_captcha_code’);     $cache = ZB_Code::destr($cache);     // Checking that the posted phrase match the phrase stored in the session     $is_captcha = Gregwar\Captcha\PhraseBuilder::comparePhrases($cache, $string);     ZB_Cookie::set(‘img_captcha_code’, ”);     if (empty($cache) || empty($string)) {         return false;     }     return (bool) $is_captcha; }