php表单向导

// 示例代码：表单处理器
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $form = new Form();
    $form->addInput('username', 'text');
    $form->addInput('email', 'email');

    if ($form->validate($_POST)) {
        // 处理表单数据
        $username = $form->getValue('username');
        $email = $form->getValue('email');
        // 保存数据到数据库或发送邮件等操作
    } else {
        // 显示错误信息
        $errors = $form->getErrors();
        foreach ($errors as $error) {
            echo $error . '<br>';
        }
    }
}

// 示例代码：使用HTML Purifier过滤输入
require_once 'htmlpurifier/HTMLPurifier.auto.php';

$config = HTMLPurifier_Config::createDefault();
$purifier = new HTMLPurifier($config);
$clean_html = $purifier->purify($_POST['input_field']);