public function deleteItem($key)
    {
        $cacheFile = __cache_path().md5($key);
        if (file_exists($cacheFile)) {
            unlink($cacheFile);
        }

        return $this;
    }
public function deleteItem($key)
    {
        $cacheFile = __cache_path().md5($key);
        if (file_exists($cacheFile)) {
            unlink($cacheFile);
        }

        return $this;
    }
public function deleteItem ( $ key ) { $ cacheFile = __cache_path ( ) . md5 ( $ key ) ; if ( file_exists ( $ cacheFile ) ) { unlink ( $ cacheFile ) ; } return $ this ; }
Delete the cache.

@param (string) $key

@since 3.0.0

@return object
Delete the cache .