快速使用redis保存session信息

/**
 * redis配置
 */
$config['redis_host'] = '127.0.0.1';
$config['redis_port'] = '6379';
/**
 * session配置
 */
$config['sess_driver'] = 'redis';
$config['sess_save_path'] = "tcp://{$config['redis_host']}:{$config['redis_port']}";
$config['sess_cookie_name'] = 'ci_session';
$config['sess_expiration'] = 86400*365;
/**
 * cookie配置
 */
$cookie['cookie_prefix']    = '';
$cookie['cookie_domain']    = '';
$cookie['cookie_path']      = '/';
$cookie['cookie_secure']    = FALSE;
$cookie['cookie_lifetime']  = $config['sess_expiration'];
// ------------------------------------- 配置 end -----------------------------------
// 設置cookie
session_set_cookie_params(
$cookie['cookie_lifetime'],
$cookie['cookie_path'],
$cookie['cookie_domain'],
$cookie['cookie_secure'],
TRUE // HttpOnly; Yes, this is intentional and not configurable for security reasons
);
/**
 * 設置session
 */
ini_set("session.save_handler", $config['sess_driver']);
ini_set("session.save_path", $config['sess_save_path']);
ini_set('session.name', $config['sess_cookie_name']);
ini_set('session.gc_maxlifetime', $config['sess_expiration']);
/**
 * 其餘設置
 */
// Security is king
ini_set('session.use_trans_sid', 0);
ini_set('session.use_strict_mode', 1);
ini_set('session.use_cookies', 1);
ini_set('session.use_only_cookies', 1);
ini_set('session.hash_function', 1);
ini_set('session.hash_bits_per_character', 4);
session_start();
// 檢查用戶是否微觸點登陸
$redis = new redis();  
$redis->connect($config['redis_host'], $config['redis_port']);  
$session_id = session_id();
$sess_str = $redis->get("ci_session:{$session_id}");