CI_Cache_redis
===============

CodeIgniter Redis Caching Class

This class enables you to create drivers for a Library based on the Driver Library.
It handles the drivers' access to the parent library


* Class name: CI_Cache_redis
* Namespace: 
* Parent class: [CI_Driver](CI_Driver.md)





Properties
----------


### $_default_config

    protected array $_default_config = array('socket_type' => 'tcp', 'host' => '127.0.0.1', 'password' => NULL, 'port' => 6379, 'timeout' => 0)

Default config



* Visibility: **protected**
* This property is **static**.


### $_redis

    protected \Redis $_redis

Redis connection



* Visibility: **protected**


### $_serialized

    protected array $_serialized = array()

An internal cache for storing keys of serialized values.



* Visibility: **protected**


### $_parent

    protected object $_parent

Instance of the parent class



* Visibility: **protected**


### $_methods

    protected array $_methods = array()

List of methods in the parent class



* Visibility: **protected**


### $_properties

    protected array $_properties = array()

List of properties in the parent class



* Visibility: **protected**


### $_reflections

    protected array $_reflections = array()

Array of methods and properties for the parent class(es)



* Visibility: **protected**
* This property is **static**.


Methods
-------


### __construct

    void CI_Cache_redis::__construct()

Class constructor

Setup Redis

Loads Redis config file if present. Will halt execution
if a Redis connection can't be established.

* Visibility: **public**




### get

    mixed CI_Cache_redis::get($key)

Get cache



* Visibility: **public**


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



### save

    boolean CI_Cache_redis::save(string $id, mixed $data, integer $ttl, boolean $raw)

Save cache



* Visibility: **public**


#### Arguments
* $id **string** - <p>Cache ID</p>
* $data **mixed** - <p>Data to save</p>
* $ttl **integer** - <p>Time to live in seconds</p>
* $raw **boolean** - <p>Whether to store the raw value (unused)</p>



### delete

    boolean CI_Cache_redis::delete($key)

Delete from cache



* Visibility: **public**


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



### increment

    mixed CI_Cache_redis::increment(string $id, integer $offset)

Increment a raw value



* Visibility: **public**


#### Arguments
* $id **string** - <p>Cache ID</p>
* $offset **integer** - <p>Step/value to add</p>



### decrement

    mixed CI_Cache_redis::decrement(string $id, integer $offset)

Decrement a raw value



* Visibility: **public**


#### Arguments
* $id **string** - <p>Cache ID</p>
* $offset **integer** - <p>Step/value to reduce by</p>



### clean

    boolean CI_Cache_redis::clean()

Clean cache



* Visibility: **public**




### cache_info

    array CI_Cache_redis::cache_info($type)

Get cache driver info



* Visibility: **public**


#### Arguments
* $type **mixed**



### get_metadata

    array CI_Cache_redis::get_metadata($key)

Get cache metadata



* Visibility: **public**


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



### is_supported

    boolean CI_Cache_redis::is_supported()

Check if Redis driver is supported



* Visibility: **public**




### __destruct

    void CI_Cache_redis::__destruct()

Class destructor

Closes the connection to Redis if present.

* Visibility: **public**




### decorate

    void CI_Driver::decorate($parent)

Decorate

Decorates the child with the parent driver lib's methods and properties

* Visibility: **public**
* This method is defined by [CI_Driver](CI_Driver.md)


#### Arguments
* $parent **mixed**



### __call

    mixed CI_Driver::__call($method, $args)

__call magic method

Handles access to the parent driver library's methods

* Visibility: **public**
* This method is defined by [CI_Driver](CI_Driver.md)


#### Arguments
* $method **mixed**
* $args **mixed**



### __get

    mixed CI_Driver::__get($var)

__get magic method

Handles reading of the parent driver library's properties

* Visibility: **public**
* This method is defined by [CI_Driver](CI_Driver.md)


#### Arguments
* $var **mixed**



### __set

    mixed CI_Driver::__set($var, $val)

__set magic method

Handles writing to the parent driver library's properties

* Visibility: **public**
* This method is defined by [CI_Driver](CI_Driver.md)


#### Arguments
* $var **mixed**
* $val **mixed**