毎日laravel-20160623|NullStore

<?php

namespace Illuminate\Cache;

use Illuminate\Contracts\Cache\Store;
// a name space to declare
class NullStore extends TaggableStore implements Store
{
    use RetrievesMultipleKeys;// use a traits ,this is a Retrieves MultipleKeys

    /** * The array of stored values. * * @var array */
    protected $storage = [];// a store array to keep values.

    /** * Retrieve an item from the cache by key. * * @param string $key * @return mixed */
    public function get($key)
    {
        //
    }// struct method

    /** * Store an item in the cache for a given number of minutes. * * @param string $key * @param mixed $value * @param int $minutes * @return void */
    public function put($key, $value, $minutes)
    {
        //
    }//struct method

    /** * Increment the value of an item in the cache. * * @param string $key * @param mixed $value * @return int */
    public function increment($key, $value = 1)
    {
        //
    }//struct method

    /** * Increment the value of an item in the cache. * * @param string $key * @param mixed $value * @return int */
    public function decrement($key, $value = 1)
    {
        //
    }//struct method

    /** * Store an item in the cache indefinitely. * * @param string $key * @param mixed $value * @return void */
    public function forever($key, $value)
    {
        //
    }//struct method

    /** * Remove an item from the cache. * * @param string $key * @return void */
    public function forget($key)
    {
        //
    }//struct method

    /** * Remove all items from the cache. * * @return void */
    public function flush()
    {
        //
    }//struct method

    /** * Get the cache key prefix. * * @return string */
    public function getPrefix()
    {
        return '';
    }//struct method
}