%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
namespace BotMan\BotMan\Cache;
use BotMan\BotMan\Interfaces\CacheInterface;
use Redis;
use RuntimeException;
/**
* Redis <http://redis.io> cache backend
* Requires phpredis native extension <https://github.com/phpredis/phpredis#installation>.
*/
class RedisCache implements CacheInterface
{
const KEY_PREFIX = 'botman:cache:';
/** @var Redis */
private $redis;
private $host;
private $port;
private $auth;
/**
* RedisCache constructor.
* @param $host
* @param $port
* @param $auth
*/
public function __construct($host = '127.0.0.1', $port = 6379, $auth = null)
{
if (! class_exists('Redis')) {
throw new RuntimeException('phpredis extension is required for RedisCache');
}
$this->host = $host;
$this->port = $port;
$this->auth = $auth;
$this->connect();
}
/**
* Determine if an item exists in the cache.
*
* @param string $key
* @return bool
*/
public function has($key)
{
/*
* Version >= 4.0 of phpredis returns an integer instead of bool
*/
$check = $this->redis->exists($this->decorateKey($key));
if (is_bool($check)) {
return $check;
}
return $check > 0;
}
/**
* Retrieve an item from the cache by key.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function get($key, $default = null)
{
return $this->redis->get($this->decorateKey($key)) ?: $default;
}
/**
* Retrieve an item from the cache and delete it.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function pull($key, $default = null)
{
$redisKey = $this->decorateKey($key);
$r = $this->redis->multi()
->get($redisKey)
->del($redisKey)
->exec();
return $r[0] ?: $default;
}
/**
* Store an item in the cache.
*
* @param string $key
* @param mixed $value
* @param \DateTime|int $minutes
* @return void
*/
public function put($key, $value, $minutes)
{
if ($minutes instanceof \Datetime) {
$seconds = $minutes->getTimestamp() - time();
} else {
$seconds = $minutes * 60;
}
$this->redis->setex($this->decorateKey($key), $seconds, $value);
}
/**
* Namespace botman keys in redis.
*
* @param $key
* @return string
*/
private function decorateKey($key)
{
return self::KEY_PREFIX.$key;
}
private function connect()
{
$this->redis = new Redis();
$this->redis->connect($this->host, $this->port);
if ($this->auth !== null) {
$this->redis->auth($this->auth);
}
if (function_exists('igbinary_serialize') && defined('Redis::SERIALIZER_IGBINARY')) {
$this->redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_IGBINARY);
} else {
$this->redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP);
}
}
public function __wakeup()
{
$this->connect();
}
}
Zerion Mini Shell 1.0