Question

我已经阅读了关于常量和mail（）函数的php.net文档，但我仍然无法解决当前的问题。

我正在尝试构建一个注册脚本，当表单上的所有内容都正确并检查一些正则表达式时，将用户添加到数据库并执行两项操作：显示感谢页面，并通过电子邮件发送提供的电子邮件地址谢谢你。

 if(empty($reg_errors)) {
        $q = "SELECT email, username FROM users WHERE email = '$e' OR username = '$u'"; //the mysql query to check for dupe emails/users
        $r = mysqli_query($dbc, $q);
        $rows = mysqli_num_rows($r);
        if($rows==0) {                                 // no dupes of email or user, so let's add them into the DB!
            $q = "INSERT INTO users(username,email,pass,first_name,last_name,date_expires) VALUES('$u','$e','".get_password_hash($p)."','$fn','$ln',ADDDATE(NOW(),INTERVAL 1 MONTH))";
            $r = mysqli_query($dbc, $q);

            //asks DB if a new row was created, and if so, thanks user for registration on the site & sends an email to their email.
            //if query doesnt work, an error is triggered
            if(mysqli_affected_rows($dbc)==1) {
                echo '<h3>Thanks!</h3><p>Thank you for registering! You may now log in and access the site\'s content.</p>';
                $body = "Thanks for registering at Knowledge is Power. We greatly appreciate your interest in our services.\n\n";
                mail($_POST['email'],'Registration Confirmation for Knowledge is Power',$body, 'From:DEVEMAIL');
                include('./includes/footer.inc.php');
                exit();
            } else {
                trigger_error("You could not be registered due to a system error. W apologize for any inconvenience.");
            }
        }

我在config.inc.php文件中设置了DEVEMAIL常量，如下所示：

define('DEVEMAIL','something@thisplace.com');

到目前为止，在我对此脚本的测试中，它将用户添加到数据库并显示感谢信息，但是当它发送感谢邮件时，它来自我的通用主机电子邮件地址，而不是我设置的电子邮件地址为常数。我在mail（）函数中格式化常量不正确吗？非常感谢。

编辑：配置邮件服务器，并研究创建预准备语句。非常感谢有用的建议。

Answer 1

你想要

'From:'.DEVEMAIL

常量不能在引号

中使用

在PHP mail（）函数中使用常量时遇到问题

1 个答案: