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.
89 lines
2.3 KiB
PHP
89 lines
2.3 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\Iterator;
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use Predis\Connection\SingleConnectionInterface;
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/**
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* Streams a multibulk reply.
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*
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class MultiBulkResponseSimple extends MultiBulkResponse
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{
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private $connection;
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/**
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* @param SingleConnectionInterface $connection Connection to Redis.
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* @param int $size Number of elements of the multibulk reply.
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*/
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public function __construct(SingleConnectionInterface $connection, $size)
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{
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$this->connection = $connection;
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$this->position = 0;
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$this->current = $size > 0 ? $this->getValue() : null;
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$this->replySize = $size;
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}
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/**
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* Handles the synchronization of the client with the Redis protocol
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* then PHP's garbage collector kicks in (e.g. then the iterator goes
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* out of the scope of a foreach).
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*/
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public function __destruct()
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{
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$this->sync(true);
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}
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/**
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* Synchronizes the client with the queued elements that have not been
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* read from the connection by consuming the rest of the multibulk reply,
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* or simply by dropping the connection.
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*
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* @param bool $drop True to synchronize the client by dropping the connection.
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* False to synchronize the client by consuming the multibulk reply.
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*/
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public function sync($drop = false)
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{
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if ($drop == true) {
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if ($this->valid()) {
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$this->position = $this->replySize;
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$this->connection->disconnect();
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}
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} else {
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while ($this->valid()) {
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$this->next();
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}
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}
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}
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/**
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* Reads the next item of the multibulk reply from the server.
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*
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* @return mixed
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*/
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protected function getValue()
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{
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return $this->connection->read();
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}
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/**
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* Returns an iterator that reads the multi-bulk response as
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* list of tuples.
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*
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* @return MultiBulkResponseTuple
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*/
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public function asTuple()
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{
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return new MultiBulkResponseTuple($this);
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}
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}
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