Unknown: php_network_getaddresses: getaddrinfo failed

一下方法可以解决，Unknown: php_network_getaddresses: getaddrinfo failed

ini_set('session.save_handler', 'redis');

$redis_serv = '192.168.1.233';

//$redis_serv = '127.0.0.1';

$redis_port = '6379';

$tmp = "tcp://$redis_serv:$redis_port?weight=1,tcp://$redis_serv:$redis_port?weight=2&timeout=2.5,tcp://$redis_serv:$redis_port?weight=2";

$t[] = $tmp;

$t[] = $sp = session_save_path($tmp);