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.
100 lines
2.2 KiB
PHP
100 lines
2.2 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/info
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class ServerInfo extends AbstractCommand
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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 'INFO';
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}
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/**
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* {@inheritdoc}
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*/
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public function parseResponse($data)
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{
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$info = array();
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$infoLines = preg_split('/\r?\n/', $data);
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foreach ($infoLines as $row) {
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@list($k, $v) = explode(':', $row);
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if ($row === '' || !isset($v)) {
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continue;
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}
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if (!preg_match('/^db\d+$/', $k)) {
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if ($k === 'allocation_stats') {
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$info[$k] = $this->parseAllocationStats($v);
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continue;
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}
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$info[$k] = $v;
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} else {
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$info[$k] = $this->parseDatabaseStats($v);
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}
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}
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return $info;
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}
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/**
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* Parses the reply buffer and extracts the statistics of each logical DB.
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*
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* @param string $str Reply buffer.
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* @return array
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*/
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protected function parseDatabaseStats($str)
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{
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$db = array();
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foreach (explode(',', $str) as $dbvar) {
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list($dbvk, $dbvv) = explode('=', $dbvar);
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$db[trim($dbvk)] = $dbvv;
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}
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return $db;
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}
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/**
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* Parses the reply buffer and extracts the allocation statistics.
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*
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* @param string $str Reply buffer.
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* @return array
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*/
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protected function parseAllocationStats($str)
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{
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$stats = array();
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foreach (explode(',', $str) as $kv) {
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@list($size, $objects, $extra) = explode('=', $kv);
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// hack to prevent incorrect values when parsing the >=256 key
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if (isset($extra)) {
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$size = ">=$objects";
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$objects = $extra;
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}
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$stats[$size] = $objects;
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}
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return $stats;
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}
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}
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