提交数组类型的数据到服务器，例如names[]，没有在校验规则中添加required规则，而只是添加了一个min_length[3]的校验规则，如果提交的names[0]是一个空字符串，那么校验是不能通过的，提示字符长度至少需要三个字符。这和校验单个值的情况并不一致。

场景:
步骤1 get('cookie') 不存在.这时已经new session了,

步骤2: set('cookie',过期时间想保留n天之后,),可惜上面的get已经new过了session,这里不再new,所以load(session,newConfig)的newConfig不会被使用.

然后 我的setcookie还是get时设置的关闭浏览器就失效了,并不是n天后,目前我修改了set_user_data方法起用config

PDO driver does not automatically enable transaction, even worse, the constructor disables transaction (line #84pdo_driver.php).

$this->trans_enabled = FALSE;

But, the driver does not have the interface/public methods to re-enable transaction. This causes all transactioncan not be rolled back.

is this a bug?I change like below and its works.
$this->trans_enabled = TRUE;

IS IT A BUG OR TRANS IS CLOSED intentionally?

环境：

ubuntu php 5.3
非 ssl

system/core/Config.php 的第 71 行，判断 $_SERVER['HTTPS'] !== 'off' 不能做为依据的

我的电脑只安装了mysql，没有安装过oracle的客户端产品
现在想用CI框架连接远程的oracle数据库，修改了php.ini文件后，重启xampp后

出现没有oci.dll这个库
我想知道有什么解决办法吗？

使用upload上传zip文件失败，然后发现，chrome将zip的mime类型视为application/octet-stream，然后ci的/config/mime.php中的zip没有这个项目。
算bug，还是特性？

http://codeigniter.org.cn/forums/forum.php?mod=viewthread&tid=18823

如果需要默认被选中的值是很长的一个数字串的时候如:10011001100110011001.选择的值就不准确了.需要将form_dropdown函数中的这个in_array($key, $selected)改为in_array($key, $selected,true)

想在ACE中部署codeigniter, 但是貌似codeigniter不支持RDS方式连接数据库, 请解决!

Ci upload zip is error in the firefox.The reason is that zip is to detected in 'application/octet-stream' in the firefox. So you need to add to zip with 'application/octet-stream' in 'config/mimes.php'.Problem solved.

hello, when I use DB class after pcntl_fork, there will be a Error: "2006 mysql server has gone away". Only the first sql can be executed successly. I think CI will close all mysql connections after execute any one sql. I tried "$this->db->db_connect();$this->db->query();$this->db->close();" and "$this->db->reconnect()", but both didn't work. At last ,I have to new Mysqli to finish it . So ,how to write this code like CI's case? thank you.

Session_memcached_driver.php 里，
$this->_memcached->getServerList()为空,导致无法保存session

如题，网站如加载了ZendGuadLoader后，CI使用$this->load->library('session')加载session类会导致服务器报错，错误代码500

PHP版本5.4.33 CI版本3.0

有一个种需求是,我在另一个平台已经存在登录权限其它的判断了,我只是想使用ci的部分处理,因为ci这边也是一个平台的入口,在另一个平台中,我需要在类中include CI进来使用.但是发现CI的初始化是靠全局变量来储存信息的.
请问是否可以修改一下,做成static类来实现呢?这样就不会出现include时全局变量变局部了导致各种问题....要么就是这些全局变量都写上global干脆.

虽然可以使用加密或是在另一个平台重复实现model什么的.但是很麻烦.最简单的就是include进来.

现在可以通过一个入口文件把另一个平台和ci同时include进来就可以了.

$route['default_controller'] = 'index/home'; this index is a folder and the home is a controller in it, but when I ran the code, the page showed "The page you requested was not found." why doesn't default_controller work?

$route['default_controller'] = "login";
class Login extends CI_Controller
{

public function  index()
{ error_log('X',3,'aa.txt');

显示xx，默认控制器。

有一种需求是
需要登录类继承ci_conctrolls,且登录状态在这个类中判断并做通过处理,只有通过了,才能继续执行子类的方法,否则应该输出提示,终止执行

其它子类就继承登录类,

这时,如果在登录类中直接使用exit中止就会导致view之类后续处理不会运行.
我看了一下ci的主体,没找到可以直接的方法,

目前我是在__construct中检查,异常,设定类内值,在remap中改变$CI的下步运行的类.
可能hook也可以做,但是比较绕不是用来终止子类运行的好方法.

这边在“不可见字符”加上了引号。
在post一个数据时，内容包括"%10"，这是3个字符组成的字符串而不是一个不可见字符，是在文本框中输入的。但是ci的input类会把"%10"这3个字符也给屏蔽了。
ci的上下文如下：

        if ($url_encoded)
        {
            $non_displayables[] = '/%0[0-8bcef]/';  // url encoded 00-08, 11, 12, 14, 15
            $non_displayables[] = '/%1[0-9a-f]/';   // url encoded 16-31
        }
        $non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S';   // 00-08, 11, 12, 14-31, 127
        do
        {
            $str = preg_replace($non_displayables, '', $str, -1, $count);
        }
        while ($count);

其中，我认为/%0[0-8bcef]/这个正则有点问题，因为%不是正则表达式的元字符，他会把%10这样的给屏蔽掉。

如果在config中配置了config['language'] = 'chinese'; 那么当发送email失败时。就会报错说加载不到语言文件。 英语水平很烂，就用中文了。盼复

When you set $config['enable_query_strings'] = TRUE; in config/config.php
Then your default_controller will not work, even you've set these parameters.
$route['default_controller'] = 'home';
$route['404_override'] = '';

CI V2.1.3
PHP V5.2.5

//controller------------------------------------------------------------------------------------
    public function index()
    {
        $data = array(
                'blog_title'   => 'My Blog Title',
                'blog_heading' => 'My Blog Heading',
                'blog_entries' => array(
                      array('title' => 'Title 1', 'body' => 'Body 1'),
                      array('title' => 'Title 2', 'body' => 'Body 2'),
                      array('title' => 'Title 3', 'body' => 'Body 3'),
                      array('title' => 'Title 4', 'body' => 'Body 4'),
                      array('title' => 'Title 5', 'body' => 'Body 5')
                 )
            );

         $this->load->view('welcome_message',$data);
    }
// END----------------------------------------------------------------------------------------

//view---------------------------------------------------------------------------------------





//END--------------------------------------------------------------------------------------

ERROR Notice

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: data

database\DB_active_rec.php line 224 "return end(explode('.', $item));" is wrong .because end() param must be array &$array

there are many database operation on a controller. every db operation operate by clone ($_db = clone $this -> db). the page show some notice:

A PHP Error was encountered

Severity: Warning

Message: mysql_errno(): 31 is not a valid MySQL-Link resource

Filename: mysql/mysql_driver.php

Line Number: 470
A PHP Error was encountered

Severity: Warning

Message: mysql_error(): 31 is not a valid MySQL-Link resource

Filename: mysql/mysql_driver.php

Line Number: 457

A Database Error Occurred

Error Number:

SELECT * FROM ....

when i delete some db operation , the page shows correct.
is there anyone meets this problem?

$base_url = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';
but,my server infomation is :
'HTTPS' => string '' (length=0)
so,The base url is wrong !
I replace it with :
$base_url = !empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';

// We kill this since we're done and we don't want to
// polute the _POST array
unset($_POST[$this->_csrf_token_name]);
// Nothing should last forever
unset($_COOKIE[$this->_csrf_cookie_name]);
$this->_csrf_set_hash();
$this->csrf_set_cookie();

$this->_csrf_hash 没有重置成空，调用_csrf_set_hash()之后每次对比后生成的value还是跟之前生成的是一样的。

system/core/loader.php

I can not understand the "helper" function.

Why the "helper" has loaded "application/helper/test_func.php" and even try to check "system/helper/test_func.php" ?

There are too many "foreach" .

public function helper($helpers = array())
{
foreach ($this->_ci_prep_filename($helpers, '_helper') as $helper)
{
if (isset($this->_ci_helpers[$helper]))
{
continue;
}

        // Is this a helper extension request?
        $ext_helper = config_item('subclass_prefix').$helper;
        $ext_loaded = FALSE;
        foreach ($this->_ci_helper_paths as $path)
        {
            if (file_exists($path.'helpers/'.$ext_helper.'.php'))
            {
                include_once($path.'helpers/'.$ext_helper.'.php');
                $ext_loaded = TRUE;
            }
        }

        // If we have loaded extensions - check if the base one is here
        if ($ext_loaded === TRUE)
        {
            $base_helper = BASEPATH.'helpers/'.$helper.'.php';
            if ( ! file_exists($base_helper))
            {
                show_error('Unable to load the requested file: helpers/'.$helper.'.php');
            }

            include_once($base_helper);
            $this->_ci_helpers[$helper] = TRUE;
            log_message('debug', 'Helper loaded: '.$helper);
            continue;
        }

        // No extensions found ... try loading regular helpers and/or overrides
        foreach ($this->_ci_helper_paths as $path)
        {
            if (file_exists($path.'helpers/'.$helper.'.php'))
            {
                include_once($path.'helpers/'.$helper.'.php');

                $this->_ci_helpers[$helper] = TRUE;
                log_message('debug', 'Helper loaded: '.$helper);
                break;
            }
        }

        // unable to load the helper
        if ( ! isset($this->_ci_helpers[$helper]))
        {
            show_error('Unable to load the requested file: helpers/'.$helper.'.php');
        }
    }

    return $this;
}

解决方法很简单，在forcedownload函数中，当判断客户端为IE时，将文件名使用rawulrencode()函数重新编码一下就可以了。。