PHP 联系表单处理

<?php
// 联系表单处理
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $name = htmlspecialchars($_POST['name'] ?? '');
    $email = filter_var($_POST['email'] ?? '', FILTER_VALIDATE_EMAIL);
    $message = htmlspecialchars($_POST['message'] ?? '');
    
    if (!$email) {
        die('请输入有效的邮箱地址');
    }
    
    $to = '[email protected]';
    $subject = "来自 $name 的咨询";
    $headers = "From: $email
Reply-To: $email";
    
    if (mail($to, $subject, $message, $headers)) {
        echo '感谢您的留言,我们会尽快回复!';
    } else {
        echo '发送失败,请稍后重试。';
    }
}
?>