无法检索密码和用户名

Question

好吧，我认为这段代码今天正常工作（特别是setSession函数）但是，我已经意识到它只选择用户名而不是密码并允许用户登录。你可以把任何你想要的东西放入表格（

<?php
class user
{
    protected $db;
    protected $uid;
    protected $email;
    protected $username;
    protected $citcode;
    protected $password;
    public $error;
    function __construct($db)
    {
        $this->db = $db;
    }
    function error($error)
    {
        $this->error = $error;  
    }
    function passwordCrypt($password)
    {
        $password = crypt($password, '$2a$07$ThisIsSparta$');
        return $password;
    }
    function registerUser($username, $password, $email, $citcode, $db)
    {
        $verifyCC = $this->checkCitCode($citcode);
        $verifyUser = $this->checkUsername($username, $email);
        if($verifyUser == true)
        {
            if($verifyCC == true)
            {
                $password = $this->passwordCrypt($password);
                $username = $this->db->real_escape_string($username);
                $email = $this->db->real_escape_string($email);
                $date = date('Y-m-d');
                $sql = "INSERT INTO users(username, password, email, joindate) VALUES ('{$username}', '{$password}', '{$email}', NOW());";
                $sql .= "INSERT INTO bank_accounts(type, balance) VALUES ('personal', '10000');";
                $query = $this->db->multi_query($sql);
                if(!$query)
                {
                    $this->error('Could not register user, please try again later.');
                }
                else
                {
                    return true;
                }
            }
            else
            {
                return $this->error('Could not Verify Citizen Code');
            }
        }
        else
        {
            return $this->error('Username/Password is already taken');
        }
    }
    function checkCitCode($citcode)
    {
        $sql = "SELECT amount, active FROM citizen_codes WHERE citizen_code = '{$citcode}';";
        $query = $this->db->query($sql);
        if(!$query)
        {
            die(mysqli_error($this->db));
        }
        else
        {
            while($row = $query->fetch_assoc())
            {
                if($row['active'] >= $row['amount'])
                {
                    return false;   
                }
                else
                {
                    $active = $row['active'] +1;
                    $sql = "UPDATE citizen_codes SET active = '{$active}' WHERE citizen_code = '{$citcode}';";
                    $query = $this->db->query($sql);
                    if(!$query)
                    {
                        return false;
                    }
                    else
                    {
                        return true;
                    }
                }
            }
        }
    }
    function checkUsername($username, $email)
    {
        $sql = "SELECT count(*) FROM users WHERE username = '{$username}' OR email = '{$email}'";
        $que = $this->db->query($sql);
        if(!$que)
        {
            return false;
        }
        else
        {
            $row = $que->fetch_array();
            if($row[0] > 0)
            {
                return false;
            }
            else
            {
                return true;    
            }
        }   
    }
    function setSession($username, $password)
    {
        $password = $this->passwordCrypt($password);
        $username = $this->db->real_escape_string($username);
        $sql = "SELECT uid FROM users WHERE username = '{$username}' AND password = '{$password}';";
        $query = $this->db->query($sql);
        if(!$query)
        {
            return false;
        }
        else
        {
            while($row = $query->fetch_array())
            {
                $_SESSION['uid'] = $row[0];
            }
        }
}
    }

作为参考，他是登录脚本。

<?php

if(!isset($_SESSION['uid']))
{
    if(!isset($_GET['mode']))
    {
    $user = new user($db);
    ?>
<style type='text/css'>
table { background-color: #666; padding: 1%; width: 20%; margin: 0 auto; }
table th { background-color:#ccc; }
table td { padding: 3%; background-color: #f1f1f1; font-weight: bold;} 
</style>
<form method='post' action='login.php?mode=set'>
<table cellpadding="0" cellspacing="0">
<tr>
<th colspan='3'><h3>Citizen Login</h3></th>
</tr>
<tr>
    <td>Username</td><td>:</td><td><input type='text' name='username' id='username'></td></tr>
<tr>
    <td>Password</td><td>:</td><td><input type='password' name='password' id='password'></td>
</tr>
<tr><th colspan='3'><input type='submit' /></th></tr>
<tr><th colspan='3'><span style='font-size: 12px;'>Don't have an account? <a href='register.php'>Register Today!</a><br /> Forgotten Password/Username?</th>
</tr>
</table>
</form>
<?php
    }
    else
    {
    include($_SERVER['DOCUMENT_ROOT'].'/includes/constants.php');
    $user = new user($db);
    $user->setSession($_POST['username'], $_POST['password']);
    echo $user->error;
    }
}
else
{
    header("location:index.php");
}
?>

Answer 1

修正了问题。数据库中的密码字段长度不够长。