mirror of
https://github.com/predis/predis.git
synced 2026-08-19 16:21:53 +00:00
Daniele Alessandri
82 lines
2.5 KiB
PHP
82 lines
2.5 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Predis package.
|
|
*
|
|
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
require 'SharedConfigurations.php';
|
|
|
|
// Predis allows to set Lua scripts as read-only operations in the context of
|
|
// replication. This works for both EVAL and EVALSHA and also for the client-side
|
|
// abstraction built upon them (Predis\Commands\ScriptedCommand). This example
|
|
// shows a slightly more complex configuration that injects a new scripted command
|
|
// in the server profile used by the new client instance and marks it marks it as
|
|
// a read-only operation for replication so that it will be executed on slaves.
|
|
|
|
use Predis\Profiles\ServerProfile;
|
|
use Predis\Commands\ScriptedCommand;
|
|
use Predis\Network\MasterSlaveReplication;
|
|
|
|
// ------------------------------------------------------------------------- //
|
|
|
|
// Define a new scripted command that returns all the fields
|
|
// of a variable number of hashes with a single roundtrip.
|
|
|
|
class HashMultipleGetAll extends ScriptedCommand {
|
|
const BODY = <<<EOS
|
|
local hashes = {}
|
|
for _, key in pairs(KEYS) do
|
|
table.insert(hashes, key)
|
|
table.insert(hashes, redis.call('hgetall', key))
|
|
end
|
|
return hashes
|
|
EOS;
|
|
|
|
public function getScript() {
|
|
return self::BODY;
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------- //
|
|
|
|
$parameters = array(
|
|
'tcp://127.0.0.1:6379/?alias=master',
|
|
'tcp://127.0.0.1:6380/?alias=slave',
|
|
);
|
|
|
|
$options = array(
|
|
'profile' => function($options) {
|
|
$profile = ServerProfile::get('dev');
|
|
$profile->defineCommand('hmgetall', 'HashMultipleGetAll');
|
|
|
|
return $profile;
|
|
},
|
|
'replication' => function($options) {
|
|
$replication = new MasterSlaveReplication();
|
|
$replication->setScriptReadOnly(HashMultipleGetAll::BODY);
|
|
|
|
return $replication;
|
|
},
|
|
);
|
|
|
|
// ------------------------------------------------------------------------- //
|
|
|
|
$client = new Predis\Client($parameters, $options);
|
|
|
|
// Execute the following commands on the master server using redis-cli:
|
|
// $ ./redis-cli HMSET metavars foo bar hoge piyo
|
|
// $ ./redis-cli HMSET servers master host1 slave host2
|
|
|
|
$hashes = $client->hmgetall('metavars', 'servers');
|
|
|
|
$replication = $client->getConnection();
|
|
$stillOnSlave = $replication->getCurrent() === $replication->getConnectionById('slave');
|
|
|
|
echo "Is still on slave? ", $stillOnSlave ? 'YES' : 'NO', "!\n";
|
|
var_export($hashes);
|