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https://github.com/predis/predis.git
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Daniele Alessandri
d34bdd38c3
All option classes have been moved in the Predis\Configuration\Option
namespace and some have been optimized to have less impact on client
initialization timings.
Furthermore the accepted values for some options have been changed,
this is the complete list of accepted values:
- _aggregate_: callable returning an aggregate connection.
- cluster: string value ("predis", "redis"), callable returning an
aggregate connection.
- replication: string value ("predis", "sentinel"), callable returning
an aggregate connection.
- commands: command factory, named array mapping command IDs to PHP
classes, callable returning a command factory or a named array.
- connections: connection factory, callable returning a connection
factory, named array mapping connection schemes to PHP classes.
- _prefix_: string value, command processor, callable.
- _exceptions_: boolean value.
Note that the cluster and replication options now return a closure
acting as initializer instead of an aggregate connection.
53 lines
1.7 KiB
PHP
53 lines
1.7 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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require __DIR__.'/shared.php';
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// Predis supports master / slave replication scenarios where write operations
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// are performed on the master server and read operations are executed against
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// one of the slaves. The behavior of commands or EVAL scripts can be customized
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// at will. As soon as a write operation is performed the client switches to the
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// master server for all the subsequent requests (either reads and writes).
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//
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// This example must be executed using the second Redis server configured as the
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// slave of the first one (see the "SLAVEOF" command).
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//
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$parameters = array(
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'tcp://127.0.0.1:6379?database=15&alias=master',
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'tcp://127.0.0.1:6380?database=15&alias=slave',
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);
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$options = array('replication' => 'predis');
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$client = new Predis\Client($parameters, $options);
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// Read operation.
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$exists = $client->exists('foo') ? 'yes' : 'no';
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$current = $client->getConnection()->getCurrent()->getParameters();
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echo "Does 'foo' exist on {$current->alias}? $exists.", PHP_EOL;
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// Write operation.
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$client->set('foo', 'bar');
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$current = $client->getConnection()->getCurrent()->getParameters();
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echo "Now 'foo' has been set to 'bar' on {$current->alias}!", PHP_EOL;
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// Read operation.
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$bar = $client->get('foo');
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$current = $client->getConnection()->getCurrent()->getParameters();
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echo "We fetched 'foo' from {$current->alias} and its value is '$bar'.", PHP_EOL;
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/* OUTPUT:
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Does 'foo' exist on slave? yes.
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Now 'foo' has been set to 'bar' on master!
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We fetched 'foo' from master and its value is 'bar'.
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*/
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