，不再需要使用session_register()进行注册了，把session_register('code');注释掉哈，再上传覆盖掉原文件即可完美解决35dir分类目录不显示验证码的问题！

下次再说35分类目录 PHP 5.5到7.0/7.1时报错。

PHP Deprecated:  mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in htdocs/****/****/***mysql.php on line

PHP Deprecated:  preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /htdocs/***/***/***rewrite.php on line