Question

好的，所以我的代码有些棘手，我正在使用password_hash，并且在Register.php页面上可以正常工作，但是当我尝试将其实现为我的代码时，它无法正常工作，因此如果有人将代码重新添加到这里，可以尝试或指导我正确的方向，我应该在编码时做到这一点，但我从来没有。下面的代码我想实现password_hash和password_verify

if (!($user -> LoggedIn()))
{
if (isset($_POST['logINBoss']))
{
    $username = htmlspecialchars($_POST['username']);
    $password = htmlspecialchars($_POST['password']);
    $errors = array();
    if (!ctype_alnum($username) || strlen($username) < 3 || strlen($username) > 15)
    {
        //$errors[] = 'Username Must Be  Alphanumberic And 4-15 characters in length';
    }

    if (empty($username) || empty($password))
    {
        $errors[] = '<center><div class="sufee-alert alert with-close alert-danger alert-dismissible fade show" role="alert"><button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button><i class="mdi mdi-check-all"></i>Fill in all fields.</div></center>">';
    }
        $SQL = $odb->prepare("SELECT `status` FROM `users` WHERE `username` = :username");
        $SQL->execute(array(':username' => $username));
        $status = $SQL->fetchColumn(0);
        if($status == 1)
        {
        $SQL = $odb->prepare("SELECT `reason` FROM `bans` WHERE `username` = :username");
        $SQL->execute(array(':username' => $username));
        $ban = $SQL->fetchColumn(0);
        header('location: banned.php');
        }
    if (empty($errors))
    {
        $SQLCheckLogin = $odb -> prepare("SELECT COUNT(*) FROM `users` WHERE `username` = :username AND `password` = :password");
        $SQLCheckLogin -> execute(array(':username' => $username, ':password' => password_hash($password, PASSWORD_DEFAULT)));
        $countLogin = $SQLCheckLogin -> fetchColumn(0);
        if ($countLogin == 1)
        {
            $SQLGetInfo = $odb -> prepare("SELECT `username`, `ID`, `status` FROM `users` WHERE `username` = :username AND `password` = :password");
            $SQLGetInfo -> execute(array(':username' => $username, ':password' => password_hash($password, PASSWORD_DEFAULT)));
            $userInfo = $SQLGetInfo -> fetch(PDO::FETCH_ASSOC);
        if ($countLogin == 1)
        {
                $logAddr = $odb->prepare("INSERT INTO `login_history` (`username`,`ip`,`date`,`http_agent`) VALUES (:user, :ip, UNIX_TIMESTAMP(NOW()), :agent);");
                $logAddr->execute(array( ":user" => $username, ":ip" => $_SERVER['REMOTE_ADDR'], ":agent" => $_SERVER['HTTP_USER_AGENT']));
                htmlspecialchars($_SESSION['username'] = $userInfo['username']);
                htmlspecialchars($_SESSION['ID'] = $userInfo['ID']);
        echo '<center><div class="sufee-alert alert with-close alert-success alert-dismissible fade show" role="alert"><button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button><i class="mdi mdi-check-all"></i>Login Successful!</div></center><meta http-equiv="refresh" content="1;url=index.php">';
            }
            else
            {
        echo '<center><div class="sufee-alert alert with-close alert-danger alert-dismissible fade show" role="alert"><button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button><i class="mdi mdi-check-all"></i>You are Banned!</div></center>';
            }
        }
        else
        {
        echo '<center><div class="sufee-alert alert with-close alert-warning alert-dismissible fade show" role="alert"><button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button><i class="mdi mdi-check-all"></i>Login Failed!</div></center>';
        }
    }
    else
    {
        echo '<div class="alert alert-danger"><p><strong>ERROR:</strong><br />';
        foreach($errors as $error)
        {
            echo '-'.htmlspecialchars_decode($error).'<br />';
        }
        echo '</div>';
    }
    }

}

Answer 1

从数据库中获取用户时，请按用户名（不按用户名和密码）进行搜索。从数据库中检索到哈希之后，请勿使用password_hash，因为它将为您提供不同的哈希！最好使用password_verify：http://php.net/manual/en/function.password-verify.php

通过这种方式可以验证密码，这就是password_verify存在的原因，因为password_hash会加盐以更好地保护密码，并且即使使用相同的纯文本也可以提供不同的哈希值。

如何实现password_hash代码

1 个答案: