* // Retrieve an item from the cache
* $name = Cache::get('name');
*
* // Retrieve an item from the cache and return a default value if it doesn't exist
* $name = Cache::get('name', 'Fred');
*
*
* @param string $key
* @param mixed $default
* @param string $driver
* @return mixed
*/
public function get($key, $default = null)
{
if ( ! is_null($item = $this->retrieve($key))) return $item;
return ($default instanceof Closure) ? call_user_func($default) : $default;
}
/**
* Retrieve an item from the cache driver.
*
* @param string $key
* @return mixed
*/
abstract protected function retrieve($key);
/**
* Write an item to the cache for a given number of minutes.
*
*
* // Store an item in the cache for 5 minutes
* Cache::put('name', 'Fred', 5);
*
*
* @param string $key
* @param mixed $value
* @param int $minutes
* @return void
*/
abstract public function put($key, $value, $minutes);
/**
* Get an item from the cache. If the item doesn't exist in the cache, store
* the default value in the cache and return it.
*
*
* // Get an item from the cache and store the default value if it doesn't exist
* Cache::remember('name', 'Fred', 5);
*
* // Closures may also be used to defer retrieval of the default value
* Cache::remember('users', function() {return DB::table('users')->get();}, 5);
*
*
* @param string $key
* @param mixed $default
* @param int $minutes
* @return mixed
*/
public function remember($key, $value, $minutes)
{
if ( ! is_null($item = $this->get($key, null))) return $item;
$default = ($default instanceof Closure) ? call_user_func($default) : $default;
$this->put($key, $default, $minutes);
return $default;
}
/**
* Delete an item from the cache.
*
* @param string $key
* @return void
*/
abstract public function forget($key);
}