這篇文章主要介紹了php實(shí)現(xiàn)redis數(shù)據(jù)庫(kù)指定庫(kù)號(hào)遷移的方法,涉及對(duì)于redis數(shù)據(jù)庫(kù)的操作技巧,非常具有實(shí)用價(jià)值,需要的朋友可以參考下

本文實(shí)例講述了php實(shí)現(xiàn)redis數(shù)據(jù)庫(kù)指定庫(kù)號(hào)遷移的方法,分享給大家供大家參考。具體如下：

redis普通的數(shù)據(jù)庫(kù)遷移,只能整個(gè)redis save,或者利用主從,當(dāng)然也可以安裝一個(gè)redis-dump,不過(guò)比較麻煩,這里提供一種php的腳本,實(shí)現(xiàn)指定庫(kù)號(hào)的遷移,其實(shí)也就是遍歷根據(jù)存儲(chǔ)類型,讀出來(lái),插入新庫(kù),效果是這樣:

代碼如下:

[root@localhost ~]# php 1.php

1/407

101/407

201/407

301/407

401/407

PHP實(shí)例代碼如下:

代碼如下:

<?php

$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;

}

?>

希望本文所述對(duì)大家的php程序設(shè)計(jì)有所幫助。

更多信息請(qǐng)查看IT技術(shù)專欄