PHPCMS v9 自定义表单添加验证码

<input type="text" id="code" name="code" size="8" class="input-text">{form::checkcode(‘code_img‘, ‘4‘, ‘14‘, 84, 24)}

<?php
defined(‘IN_PHPCMS‘) or exit(‘No permission resources.‘);
define(‘CACHE_MODEL_PATH‘,PHPCMS_PATH.‘caches‘.DIRECTORY_SEPARATOR.‘caches_model‘.DIRECTORY_SEPARAT

$session_storage = ‘session_‘.pc_base::load_config(‘system‘,‘session_storage‘);   //判断验证码
pc_base::load_sys_class($session_storage);    //判断验证码

if (isset($_POST[‘dosubmit‘])) {
    $tablename = ‘form_‘.$r[‘tablename‘];
    $this->m_db->change_table($tablename);

if(!empty($_SESSION[‘code‘])) {
    //判断验证码
    $code = isset($_POST[‘code‘]) && trim($_POST[‘code‘]) ? trim($_POST[‘code‘]) : showmessage(L(‘input_code‘), HTTP_REFERER);
    if ($_SESSION[‘code‘] != strtolower($code)) {
        showmessage(L(‘code_error‘), HTTP_REFERER);
    }
}