redis普通的数据库迁移，只能整个redis save，或者利用主从，当然也可以安装一个redis-dump，不过比较麻烦，这里提供一种php的脚本，实现指定库号的迁移，其实也就是遍历根据存储类型，读出来，插入新库；效果是这样：
| 代码如下 |
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[root@localhost ~]# php 1.php
1/407
101/407
201/407
301/407
401/407
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上代码：
| 代码如下 |
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$from = '10.0.2.52:6379/7';
$to = '127.0.0.1:6379/7';
$from_redis = redis_init($from);
$to_redis = redis_init($to);
$keys = $from_redis->keys('*');
$count = 0;
$total = count($keys);
foreach($keys as $key){
if(++$count % 100 == 1){
echo "$count/$total＼n";
}
$type = $from_redis->type($key);
switch($type){
case Redis::REDIS_STRING:
$val = $from_redis->get($key);
$to_redis->set($key, $val);
break;
case Redis::REDIS_LIST:
$list = $from_redis->lRange($key, 0, -1);
foreach($list as $val){
$to_redis->rPush($key, $val);
}
break;
case Redis::REDIS_HASH:
$hash = $from_redis->hGetAll($key);
$to_redis->hMSet($key, $hash);
break;
case Redis::REDIS_ZSET:
$zset = $from_redis->zRange($key, 0, -1, true);
foreach($zset as $val=>$score){
$to_redis->zAdd($key, $score, $val);
}
break;
}
}
function redis_init($conf){
$redis = new Redis();
preg_match('/^([^:]+)(:[0-9]+)?＼＼/(.+)?/', $conf, $ms);
$host = $ms[1];
$port = trim($ms[2], ':');
$db = $ms[3];
$redis->connect($host, $port);
$redis->select($db);
return $redis;
}
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