分析Ecshop源码中会员系统的代码实现

function register($username, $password, $email)
{
    if (empty($username) || empty($password) || empty($email))
    {
        $this->error = ERR_INVALID_USER;
        return false;
    }

    if (!$this->check_user($username))
    {
        $this->error = ERR_USERNAME_EXISTS;
        return false;
    }

    $password = $this->compile_password(array('password' => $password));
    $sql = "INSERT INTO " . $this->user_table .
           "(user_name, password, email, reg_time, last_login) " .
           "VALUES('$username', '$password', '$email', '" . gmtime() . "', '" . gmtime() . "')";

    $this->db->query($sql);

    if ($this->db->affected_rows() == 1)
    {
        $this->user_id = $this->db->insert_id();
        return true;
    }
    else
    {
        $this->error = ERR_REGистER_FAIL;
        return false;
    }
}

function login($username, $password, $remember = null)
{
    if (empty($username) || empty($password))
    {
        $this->error = ERR_INVALID_USER;
        return false;
    }

    if ($this->check_user($username, $password) === true)
    {
        if ($this->need_sync)
        {
            $this->sync($username, $password);
        }
        $this->set_session($username);
        $this->set_cookie($username, $remember);

        $this->user_id = $this->get_user_id($username);
        return true;
    }
    else
    {
        $this->error = ERR_INVALID_USER;
        return false;
    }
}

function compile_password($array)
{
    $cfg = $this->get_settings($this->site_id);
    $pwd = md5($array['password'] . $cfg['hash_code']);
    return $pwd;
}

class WechatIntegrate extends Integrate
{
    function login($username, $password, $remember = null)
    {
        // 实现微信登录逻辑
    }

    function register($username, $password, $email)
    {
        // 实现微信注册逻辑
    }
}