在转移到新服务器后，我收到了很多这样的通知：
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: account/settings.php
Line Number: 28
account/settings.php视图@line 28内容为：
echo $user->description;
到处都会出现错误，我正试图从$user变量中获取信息。我想这与tank_auth有关：我正在通过控制器传递$user数据：
$data['user'] = $this->tank_auth->user();
[..]
$this->load->view('account/settings', $data);
我登录了。
我的目录路径与早期服务器上的路径完全相同。
问题出在哪里？
这可能是因为服务器哈希设置为不可移植。。
application/config/tank_auth.php中的第13-23行
/*
|--------------------------------------------------------------------------
| Security settings
|
| The library uses PasswordHash library for operating with hashed passwords.
| 'phpass_hash_portable' = Can passwords be dumped and exported to another server. If set to FALSE then you won't be able to use this database on another server.
| 'phpass_hash_strength' = Password hash strength.
|--------------------------------------------------------------------------
*/
## Set this to TRUE
$config['phpass_hash_portable'] = FALSE;
$config['phpass_hash_strength'] = 8;
application/libraries/phpass-0.1/PasswordHash.php的203-235行
为了防止你好奇这个配置在哪里发挥作用，它在blowfish哈希创建中：
function HashPassword($password)
{
$random = '';
if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
$random = $this->get_random_bytes(16);
$hash =
crypt($password, $this->gensalt_blowfish($random));
if (strlen($hash) == 60)
return $hash;
}
if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
if (strlen($random) < 3)
$random = $this->get_random_bytes(3);
$hash =
crypt($password, $this->gensalt_extended($random));
if (strlen($hash) == 20)
return $hash;
}
if (strlen($random) < 6)
$random = $this->get_random_bytes(6);
$hash =
$this->crypt_private($password,
$this->gensalt_private($random));
if (strlen($hash) == 34)
return $hash;
# Returning '*' on error is safe here, but would _not_ be safe
# in a crypt(3)-like function used _both_ for generating new
# hashes and for validating passwords against existing hashes.
return '*';
}
如果这不能解决问题
试试print_r($user);什么回来了？