PredisServiceProvider

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PredisServiceProvider

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Predis service provider for the Silex microframework

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# Predis ServiceProvider #

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[![HHVM Status](http://hhvm.h4cc.de/badge/predis/service-provider.png)](http://hhvm.h4cc.de/package/predis/service-provider)

This service provider for [Silex](http://silex-project.org/) allows developers to easily configure
and expose [Predis](http://github.com/nrk/predis) enabling them to use [Redis](http://redis.io) in
their applications.

### Getting started ###

Supposing that the skeleton of your application is ready, you simply need to register this service
provider by specifying the parameters and options needed to access Redis:

```php
$app->register(new Predis\Silex\ClientServiceProvider(), [
    'predis.parameters' => 'tcp://127.0.0.1:6379',
    'predis.options'    => [
        'prefix'  => 'silex:',
        'profile' => '3.0',
    ],
]);
```

This will register one instance of `Predis\Client` accessible from anywhere in your application by
using `$app['predis']`. Both `predis.parameters` and `predis.options` are optional and they accept
the same values accepted by the constructor of `Predis\Client` (see the documentation of Predis).

Certain applications might need more than one client to reach different servers or configured with
different options. In such cases you must use `Predis\Silex\ClientsServiceProvider` providing a list
of clients with their own parameters and options using `predis.clients`:

```php
$app->register(new Predis\Silex\ClientsServiceProvider(), [
    'predis.clients' => [
        'client1' => 'tcp://127.0.0.1:6379',
        'client2' => [
            'host' => '127.0.0.1',
            'port' => 6380,
        ],
        'client3' => [
            'parameters' => 'tcp://127.0.0.1:6381',
            'options' => [
                'profile' => 'dev',
                'prefix'  => 'silex:',
            ],
        ],
    ),
]);
```

Clients will be exposed to your application using `$app['predis'][$alias]` where `$alias` is the key
used to populate the items of `predis.clients`. Optionally, it is possible to set a default client
by specifying its alias in `predis.default_client` making it accessible simply by invoking methods
of `Predis\Client` directly against `$app['predis']`. Client instances are lazily initialized upon
the first access.

__NOTE__: this is not the same as using a cluster of nodes or replication as it will only create and
set up independent client instances. Cluster and replication thus work with both single and multiple
client configurations, you just need to provide the needed parameters and options for each instance
of `Predis\Client`.

You can find more details on how to use this provider in the `examples` directory or the test suite.

### Reporting bugs and contributing code ###

Contributions are highly appreciated either in the form of pull requests for new features, bug fixes
or just bug reports. We only ask you to adhere to a [basic set of rules](CONTRIBUTING.md) before
submitting your changes or filing bugs on the issue tracker to make it easier for everyone to stay
consistent while working on the project.

### Project links ###

- [Source code](http://github.com/nrk/PredisServiceProvider)
- [Issue tracker](http://github.com/nrk/PredisServiceProvider/issues)

### Author ###

- [Daniele Alessandri](mailto:suppakilla@gmail.com)
  ([github](http://github.com/nrk))
  ([twitter](http://twitter.com/JoL1hAHN))

### Contributors ###

- Jérôme Macias ([github](http://github.com/jeromemacias))

### License ###

The code for Predis ServiceProvider is distributed under the terms of the [MIT license](LICENSE).

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