ts-website/lib/phpfastcache/phpFastCache/Drivers/memcache.php

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2016-06-28 21:18:59 +00:00
<?php
/**
*
* This file is part of phpFastCache.
*
* @license MIT License (MIT)
*
* For full copyright and license information, please see the docs/CREDITS.txt file.
*
* @author Khoa Bui (khoaofgod) <khoaofgod@gmail.com> http://www.phpfastcache.com
* @author Georges.L (Geolim4) <contact@geolim4.com>
*
*/
namespace phpFastCache\Drivers;
use phpFastCache\Core\DriverAbstract;
use Memcache as MemcacheSoftware;
/**
* Class memcache
* @package phpFastCache\Drivers
*/
class memcache extends DriverAbstract
{
/**
* @var \Memcache
*/
public $instant;
/**
* @var int
*/
protected $memcacheFlags = 0;
/**
* phpFastCache_memcache constructor.
* @param array $config
*/
public function __construct($config = array())
{
$this->setup($config);
if (!$this->checkdriver() && !isset($config[ 'skipError' ])) {
$this->fallback = true;
}
if (class_exists('Memcache')) {
$this->instant = new MemcacheSoftware();
if (array_key_exists('compress_data', $config) && $config[ 'compress_data' ] === true) {
$this->memcacheFlags = MEMCACHE_COMPRESSED;
}
} else {
$this->fallback = true;
}
}
/**
* @return bool
*/
public function checkdriver()
{
// Check memcache
if (function_exists('memcache_connect')) {
return true;
}
$this->fallback = true;
return false;
}
/**
*
*/
public function connectServer()
{
$server = $this->config[ 'memcache' ];
if (count($server) < 1) {
$server = array(
array('127.0.0.1', 11211),
);
}
foreach ($server as $s) {
$name = $s[ 0 ] . "_" . $s[ 1 ];
if (!isset($this->checked[ $name ])) {
try {
if (!$this->instant->addserver($s[ 0 ], $s[ 1 ])) {
$this->fallback = true;
}
$this->checked[ $name ] = 1;
} catch (\Exception $e) {
$this->fallback = true;
}
}
}
}
/**
* @param $keyword
* @param string $value
* @param int $time
* @param array $option
* @return array|bool
*/
public function driver_set(
$keyword,
$value = '',
$time = 300,
$option = array()
) {
$this->connectServer();
// Memcache will only allow a expiration timer less than 2592000 seconds,
// otherwise, it will assume you're giving it a UNIX timestamp.
if ($time > 2592000) {
$time = time() + $time;
}
if (isset($option[ 'skipExisting' ]) && $option[ 'skipExisting' ] == true) {
return $this->instant->add($keyword, $value, $this->memcacheFlags, $time);
} else {
return $this->instant->set($keyword, $value, $this->memcacheFlags, $time);
}
}
/**
* @param $keyword
* @param array $option
* @return array|null|string
*/
public function driver_get($keyword, $option = array())
{
$this->connectServer();
// return null if no caching
// return value if in caching
$x = $this->instant->get($keyword);
if ($x == false) {
return null;
} else {
return $x;
}
}
/**
* @param $keyword
* @param array $option
*/
public function driver_delete($keyword, $option = array())
{
$this->connectServer();
$this->instant->delete($keyword);
}
/**
* @param array $option
* @return array
*/
public function driver_stats($option = array())
{
$this->connectServer();
$res = array(
'info' => '',
'size' => '',
'data' => $this->instant->getStats(),
);
return $res;
}
/**
* @param array $option
*/
public function driver_clean($option = array())
{
$this->connectServer();
$this->instant->flush();
}
/**
* @param $keyword
* @return bool
*/
public function driver_isExisting($keyword)
{
$this->connectServer();
$x = $this->get($keyword);
return !($x == null);
}
}