PHP使用memcache存储session

< ?php ini_set('session.save_handler', 'memcache'); ini_set('session.save_path', 'tcp://127.0.0.1:12345?persistent=1&weight=1&timeout=1&retry_interval=15,tcp://127.0.0.2:12345?persistent=1&weight=1&timeout=1&retry_interval=15'); session_start(); ?>

/* SESSION */
‘SESSION_AUTO_START’ =>true,
‘SESSION_OPTIONS’ =>array(‘type’=>’memcache’,’path’=>’cp://127.0.0.1:12345?persistent=1&weight=1&timeout=1&retry_interval=15,tcp://127.0.0.2:12345?persistent=1&weight=1&timeout=1&retry_interval=15′,’domain’=>’.a.com’),