CI_Session
===============

CodeIgniter Session Class


* Class name: CI_Session
* Namespace: 


Properties
----------


### $userdata

    public mixed $userdata

Userdata array

Just a reference to $_SESSION, for BC purposes.

* Visibility: **public**


### $_driver

    protected mixed $_driver = 'files'


* Visibility: **protected**


### $_config

    protected mixed $_config


* Visibility: **protected**


Methods
-------


### __construct

    void CI_Session::__construct(array $params)

Class constructor


* Visibility: **public**


#### Arguments
* $params **array** - &lt;p&gt;Configuration parameters&lt;/p&gt;


### _ci_load_classes

    string CI_Session::_ci_load_classes(string $driver)

CI Load Classes

An internal method to load all possible dependency and extension
classes. It kind of emulates the CI_Driver library, but is
self-sufficient.

* Visibility: **protected**


#### Arguments
* $driver **string** - &lt;p&gt;Driver name&lt;/p&gt;


### _configure

    void CI_Session::_configure($params)

Configuration

Handle input parameters and configuration defaults

* Visibility: **protected**


#### Arguments
* $params **mixed**


### _ci_init_vars

    void CI_Session::_ci_init_vars()

Handle temporary variables

Clears old "flash" data, marks the new one for deletion and handles
"temp" data deletion.

* Visibility: **protected**


### mark_as_flash

    boolean CI_Session::mark_as_flash(mixed $key)

Mark as flash


* Visibility: **public**


#### Arguments
* $key **mixed** - &lt;p&gt;Session data key(s)&lt;/p&gt;


### get_flash_keys

    array CI_Session::get_flash_keys()

Get flash keys


* Visibility: **public**


### unmark_flash

    void CI_Session::unmark_flash(mixed $key)

Unmark flash


* Visibility: **public**


#### Arguments
* $key **mixed** - &lt;p&gt;Session data key(s)&lt;/p&gt;


### mark_as_temp

    boolean CI_Session::mark_as_temp(mixed $key, integer $ttl)

Mark as temp


* Visibility: **public**


#### Arguments
* $key **mixed** - &lt;p&gt;Session data key(s)&lt;/p&gt;
* $ttl **integer** - &lt;p&gt;Time-to-live in seconds&lt;/p&gt;


### get_temp_keys

    array CI_Session::get_temp_keys()

Get temp keys


* Visibility: **public**


### unmark_temp

    void CI_Session::unmark_temp(mixed $key)

Unmark flash


* Visibility: **public**


#### Arguments
* $key **mixed** - &lt;p&gt;Session data key(s)&lt;/p&gt;


### __get

    mixed CI_Session::__get(string $key)

__get()


* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;&#039;session_id&#039; or a session data key&lt;/p&gt;


### __set

    void CI_Session::__set(string $key, mixed $value)

__set()


* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;Session data key&lt;/p&gt;
* $value **mixed** - &lt;p&gt;Session data value&lt;/p&gt;


### sess_destroy

    void CI_Session::sess_destroy()

Session destroy

Legacy CI_Session compatibility method

* Visibility: **public**


### sess_regenerate

    void CI_Session::sess_regenerate(boolean $destroy)

Session regenerate

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $destroy **boolean** - &lt;p&gt;Destroy old session data flag&lt;/p&gt;


### get_userdata

    mixed CI_Session::get_userdata()

Get userdata reference

Legacy CI_Session compatibility method

* Visibility: **public**


### userdata

    mixed CI_Session::userdata(string $key)

Userdata (fetch)

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;Session data key&lt;/p&gt;


### set_userdata

    void CI_Session::set_userdata(mixed $data, mixed $value)

Set userdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $data **mixed** - &lt;p&gt;Session data key or an associative array&lt;/p&gt;
* $value **mixed** - &lt;p&gt;Value to store&lt;/p&gt;


### unset_userdata

    void CI_Session::unset_userdata($key)

Unset userdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **mixed**


### all_userdata

    array CI_Session::all_userdata()

All userdata (fetch)

Legacy CI_Session compatibility method

* Visibility: **public**


### has_userdata

    boolean CI_Session::has_userdata(string $key)

Has userdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;Session data key&lt;/p&gt;


### flashdata

    mixed CI_Session::flashdata(string $key)

Flashdata (fetch)

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;Session data key&lt;/p&gt;


### set_flashdata

    void CI_Session::set_flashdata(mixed $data, mixed $value)

Set flashdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $data **mixed** - &lt;p&gt;Session data key or an associative array&lt;/p&gt;
* $value **mixed** - &lt;p&gt;Value to store&lt;/p&gt;


### keep_flashdata

    void CI_Session::keep_flashdata(mixed $key)

Keep flashdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **mixed** - &lt;p&gt;Session data key(s)&lt;/p&gt;


### tempdata

    mixed CI_Session::tempdata(string $key)

Temp data (fetch)

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **string** - &lt;p&gt;Session data key&lt;/p&gt;


### set_tempdata

    void CI_Session::set_tempdata(mixed $data, mixed $value, integer $ttl)

Set tempdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $data **mixed** - &lt;p&gt;Session data key or an associative array of items&lt;/p&gt;
* $value **mixed** - &lt;p&gt;Value to store&lt;/p&gt;
* $ttl **integer** - &lt;p&gt;Time-to-live in seconds&lt;/p&gt;


### unset_tempdata

    void CI_Session::unset_tempdata($key)

Unset tempdata

Legacy CI_Session compatibility method

* Visibility: **public**


#### Arguments
* $key **mixed**