名站导航为爱好php程序的朋友们提供php相关的教程知识。
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:
[root@localhost ~]# php 1.php 1/407 101/407 201/407 301/407 401/407
上具体代码如下:
<?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; }
好了关于php程序的知识就说到这里希望可以帮助需要的朋友。,php批量去除指定目录的bom头