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https://github.com/predis/predis.git
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Daniele Alessandri
b553c6b9d0
This should not break existing code but allows users to retrieve more easily the current dispatcher loop instance without resorting to some tricks (like relying on the "use()" directive with closures).
80 lines
2.1 KiB
PHP
80 lines
2.1 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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// This is a basic example on how to use the Predis\DispatcherLoop class.
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//
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// To see this example in action you can just use redis-cli and publish some
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// messages to the 'events' and 'control' channel, e.g.:
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// ./redis-cli
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// PUBLISH events first
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// PUBLISH events second
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// PUBLISH events third
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// PUBLISH control terminate_dispatcher
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// Create a client and disable r/w timeout on the socket
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$client = new Predis\Client($single_server + array('read_write_timeout' => 0));
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// Return an initialized PubSub consumer instance from the client.
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$pubsub = $client->pubSubLoop();
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// Create a dispatcher loop instance and attach a bunch of callbacks.
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$dispatcher = new Predis\PubSub\DispatcherLoop($pubsub);
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// Demonstrate how to use a callable class as a callback for the dispatcher loop.
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class EventsListener implements Countable
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{
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private $events;
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public function __construct()
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{
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$this->events = array();
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}
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public function count()
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{
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return count($this->events);
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}
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public function getEvents()
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{
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return $this->events;
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}
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public function __invoke($payload, $dispatcher)
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{
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$this->events[] = $payload;
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}
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}
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// Attach our callable class to the dispatcher.
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$dispatcher->attachCallback('events', ($events = new EventsListener()));
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// Attach a function to control the dispatcher loop termination with a message.
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$dispatcher->attachCallback('control', function ($payload, $dispatcher) {
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if ($payload === 'terminate_dispatcher') {
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$dispatcher->stop();
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}
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});
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// Run the dispatcher loop until the callback attached to the 'control' channel
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// receives 'terminate_dispatcher' as a message.
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$dispatcher->run();
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// Display our achievements!
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echo "We received {$events->count()} messages!", PHP_EOL;
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// Say goodbye :-)
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$version = redis_version($client->info());
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echo "Goodbye from Redis $version!", PHP_EOL;
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