从某个 Redis db 导出数据到另一个 Redis db 的PHP脚本：

复制代码 代码如下:$from = '127.0.0.1:6200/6';

$to = '127.0.0.1:6200/8';

$from_redis = redis_init($from);

$to_redis = redis_init($to);

$keys = $from_redis->keys('*');

$count = 0;

$total = count($keys);

foreach($keys as $key){

if(++$count % 100 == 1){

echo "$count/$totaln";

}

$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;

}