在 CodeIgniter 1.7.3 中,当您使用 set_userdata 添加布尔值、整数和字符串值,然后立即将它们读回时,类型会被保留。但是如果你重定向到另一个页面并读回这些值,你总是会得到字符串值。在 CI 1.6.1 中,类型将被保留。任何想法为什么会发生这种情况?它是 1.7.3 中的错误吗?任何解决方法?
示例:运行 test1 设置会话数据,将其读回,重定向到 test2,然后再次读回:
<?php
class Test1 extends Controller
{
function index()
{
$this->session->set_userdata(array('vbool'=>TRUE));
$this->session->set_userdata(array('vint'=>23));
$this->session->set_userdata(array('vstr'=>'abc'));
$vbool = $this->session->userdata('vbool');
$vint = $this->session->userdata('vint');
$vstr = $this->session->userdata('vstr');
log_message('error', "test1: vbool=$vbool " . gettype($vbool));
log_message('error', "test1: vint=$vint " . gettype($vint));
log_message('error', "test1: vstr=$vstr " . gettype($vstr));
redirect('/backend/test2', 'location');
}
}
?>
<?php
class Test2 extends Controller
{
function index()
{
$vbool = $this->session->userdata('vbool');
$vint = $this->session->userdata('vint');
$vstr = $this->session->userdata('vstr');
log_message('error', "test2: vbool=$vbool " . gettype($vbool));
log_message('error', "test2: vint=$vint " . gettype($vint));
log_message('error', "test2: vstr=$vstr " . gettype($vstr));
}
}
?>
CI LOG 中的输出
ERROR - 2011-05-09 16:56:11 --> test1: vbool=1 boolean
ERROR - 2011-05-09 16:56:11 --> test1: vint=23 integer
ERROR - 2011-05-09 16:56:11 --> test1: vstr=abc string
ERROR - 2011-05-09 16:56:11 --> test2: vbool=1 string
ERROR - 2011-05-09 16:56:11 --> test2: vint=23 string
ERROR - 2011-05-09 16:56:11 --> test2: vstr=abc string
配置设置
ERROR - 2011-05-09 16:56:11 --> sess_encrypt_cookie=
ERROR - 2011-05-09 16:56:11 --> sess_use_database=
ERROR - 2011-05-09 16:56:11 --> sess_table_name=ci_sessions
ERROR - 2011-05-09 16:56:11 --> sess_expiration=7200
ERROR - 2011-05-09 16:56:11 --> sess_match_ip=
ERROR - 2011-05-09 16:56:11 --> sess_match_useragent=1
ERROR - 2011-05-09 16:56:11 --> sess_cookie_name=ci_session
ERROR - 2011-05-09 16:56:11 --> cookie_prefix=
ERROR - 2011-05-09 16:56:11 --> cookie_path=/
ERROR - 2011-05-09 16:56:11 --> sess_time_to_update=300
ERROR - 2011-05-09 16:56:11 --> encryption_key=