• 2012-07-17

    PHP codes to dump Redis

    Views: 9896 | No Comments

    Here is a script of PHP codes to dump Redis data, from one db to another. Usage: save codes to file named a.php, change $from and $to, run:

    php a.php

    <?php
    
    $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 "$count/$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;
    }
    
    Posted by ideawu at 2012-07-17 15:29:08 Tags:
|<<<12>>>| 2/2 Pages, 6 Results.