《PHP教程：php實現(xiàn)redis數(shù)據(jù)庫指定庫號遷移的方法》要點：
本文介紹了PHP教程：php實現(xiàn)redis數(shù)據(jù)庫指定庫號遷移的方法，希望對您有用。如果有疑問，可以聯(lián)系我們。
PHP教程本文實例講述了php實現(xiàn)redis數(shù)據(jù)庫指定庫號遷移的辦法,分享給大家供大家參考.具體如下：
PHP教程redis普通的數(shù)據(jù)庫遷移,只能整個redis save,或者利用主從,當(dāng)然也可以安裝一個redis-dump,不過比較麻煩,這里提供一種php的腳本,實現(xiàn)指定庫號的遷移,其實也就是遍歷根據(jù)存儲類型,讀出來,插入新庫,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;
}
?>
PHP教程希望本文所述對大家的php程序設(shè)計有所贊助.
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