Question

如果有人登录数据库，我希望发送一封电子邮件给我。我的连接和登录配置如下。

     <?php 
session_start();
    require_once('connect.php');

    // Retrieve username and password from database according to user's input
    $input_username = mysql_real_escape_string($_POST['username']);
    $login = mysql_query("SELECT * FROM user WHERE username = '".$input_username."'" ); 

    // Check username and password match
    $row = mysql_fetch_array($login);
    if (mysql_num_rows($login)) {
            if($row['password'] === md5($_POST['password'])){
                 $_SESSION['username'] = $_POST['username']; // store in session
                 $sql = "UPDATE user SET logindate = NOW() WHERE username = '" . mysql_real_escape_string($_SESSION['username']) . "'";
                 mysql_query($sql) or die("Error in SQL: " . mysql_error()); 

    }
    else{
            // Invalid login
            echo header('Location: loginerror.php');
                  exit;
    }
    ?>

Answer 1

您只需使用PHP mail功能发送邮件即可。

如果您想在每次用户登录时收到电子邮件，您可能希望像这样添加：

if ($rowcount == 1) {

    $_SESSION['username'] = $_POST['username'];

    $headers  = "From:Me <no-reply@example.com>\r\n";
    $headers .= "Reply-To: no-reply@example.com\r\n";
    $email_to = "your@emailadress.tld";
    $subject = "Someone logged in!";
    $message = "User ".$_POST['username']." logged in!";
    mail($email_to, $subject, $message, $headers);

    header("Location: securedpage.php");

}

要检查邮件功能是否成功，您可以使用：

if(mail($email_to, $subject, $message, $headers)) {

    // mail function was successful

} else {

    // error; mail function was NOT successful

}

修改

只需注意：您执行两次查询，而在第二次查询中则不使用转义数据。您应该删除第一个并将第二个更改为下面的代码。也可以使用mysql_real_escape字符串作为密码：

$input_password = mysql_real_escape_string($_POST['password']); $login = mysql_query("SELECT * FROM tbuser WHERE (username = '" . $input_username . "') AND (password = '" . md5($input_password) . "')",$db);

当有人登录mysql时如何发送电子邮件

1 个答案: