c58f935fdc
The example (and related documentation at redis.io) was not updated for 5 years. Redis had no sorted sets and hashes when the original code was written (!). An update was really needed. We also use a modern PHP client now: Predis. A copy is shipped within this repository to make life easier to newcomers trying Redis for the first time via this example.
72 lines
2.1 KiB
PHP
72 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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namespace Predis\Protocol\Text;
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use Predis\CommunicationException;
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use Predis\Connection\ComposableConnectionInterface;
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use Predis\Protocol\ProtocolException;
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use Predis\Protocol\ResponseHandlerInterface;
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/**
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* Implements a response handler for multi-bulk replies using the standard
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* wire protocol defined by Redis.
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*
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* @link http://redis.io/topics/protocol
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class ResponseMultiBulkHandler implements ResponseHandlerInterface
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{
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/**
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* Handles a multi-bulk reply returned by Redis.
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*
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* @param ComposableConnectionInterface $connection Connection to Redis.
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* @param string $lengthString Number of items in the multi-bulk reply.
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* @return array
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*/
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public function handle(ComposableConnectionInterface $connection, $lengthString)
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{
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$length = (int) $lengthString;
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if ("$length" !== $lengthString) {
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CommunicationException::handle(new ProtocolException(
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$connection, "Cannot parse '$lengthString' as multi-bulk length"
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));
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}
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if ($length === -1) {
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return null;
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}
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$list = array();
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if ($length > 0) {
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$handlersCache = array();
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$reader = $connection->getProtocol()->getReader();
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for ($i = 0; $i < $length; $i++) {
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$header = $connection->readLine();
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$prefix = $header[0];
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if (isset($handlersCache[$prefix])) {
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$handler = $handlersCache[$prefix];
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} else {
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$handler = $reader->getHandler($prefix);
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$handlersCache[$prefix] = $handler;
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}
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$list[$i] = $handler->handle($connection, substr($header, 1));
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}
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}
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return $list;
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}
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}
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