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)
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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 ($payload) use ($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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