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.
103 lines
2.3 KiB
PHP
103 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\Command;
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/**
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* @link http://redis.io/commands/zrange
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class ZSetRange extends PrefixableCommand
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{
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/**
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* {@inheritdoc}
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*/
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public function getId()
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{
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return 'ZRANGE';
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}
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/**
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* {@inheritdoc}
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*/
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protected function filterArguments(Array $arguments)
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{
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if (count($arguments) === 4) {
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$lastType = gettype($arguments[3]);
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if ($lastType === 'string' && strtoupper($arguments[3]) === 'WITHSCORES') {
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// Used for compatibility with older versions
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$arguments[3] = array('WITHSCORES' => true);
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$lastType = 'array';
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}
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if ($lastType === 'array') {
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$options = $this->prepareOptions(array_pop($arguments));
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return array_merge($arguments, $options);
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}
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}
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return $arguments;
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}
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/**
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* Returns a list of options and modifiers compatible with Redis.
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*
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* @param array $options List of options.
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* @return array
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*/
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protected function prepareOptions($options)
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{
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$opts = array_change_key_case($options, CASE_UPPER);
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$finalizedOpts = array();
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if (!empty($opts['WITHSCORES'])) {
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$finalizedOpts[] = 'WITHSCORES';
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}
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return $finalizedOpts;
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}
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/**
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* Checks for the presence of the WITHSCORES modifier.
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*
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* @return bool
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*/
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protected function withScores()
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{
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$arguments = $this->getArguments();
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if (count($arguments) < 4) {
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return false;
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}
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return strtoupper($arguments[3]) === 'WITHSCORES';
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}
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/**
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* {@inheritdoc}
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*/
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public function parseResponse($data)
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{
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if ($this->withScores()) {
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$result = array();
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for ($i = 0; $i < count($data); $i++) {
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$result[] = array($data[$i], $data[++$i]);
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}
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return $result;
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}
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return $data;
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}
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}
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