3月 13th, 2008
作者:张立冰
出处:http://www.libing.name/2008/03/13/php5-memcache-array.html
我们经常使用Memcache来做数据的缓存,比如大的分布式的应用的会话数据的保存等,每次使用Memcache进行数据的操作都必须依赖于Memcache提供的API,对象的创建,方法的调用等,虽然就几个API,使用起来也挺方便的,但再没有像使用数组这么方便来使用你的Memcache了.
At PHPClasses:http://www.phpclasses.org/browse/package/4071.html
在PHP5里,可以方便的帮我们实现了(基于SPL).几小时的工作,可能有些小BUG,欢迎反馈.:)
/**
* mem.class.php -- Class used to access memcache server as array.
*
* Written by roast (roast_AT_php_DOT_net).
*
* Feel free to email me with questions/bugs.
* If you find this useful, would be great to hear from you.
*
* version 1.0 -
*
* Changes:
* - First release.
*
* Example:
*
* include("mem.class.php");
*
* //global variable $_MEM
*
* $_MEM['dd'] = "roast"; //memcache::set
* unset($_MEM['dd']); //memcache::delete
*
* var_dump($_MEM['dd']);
*
* Notes:
* - Protect keys of memcache: _host/_port/_compress/_expire.
* - PHP version 5.0+
*/ class _MEM implements ArrayAccess
{ private $_data = array(); private $_handler = false; public $_host; public $_port = 11211; public $_compress = false; public $_expire = 30; publicfunction __construct($host,$port = 11211)
{
$this->_host = $host;
$this->_port = $port;
$this->_handler = new Memcache;
if (!$this->_handler->connect($host,$port))
$this->_handler = false;
} publicfunction offsetExists($offset) {} publicfunction offsetUnset($offset)
{
$this->_handler->delete($offset);
unset($this->_data[$offset]);
} publicfunction offsetGet($offset)
{
if (!$this->_handler)
return false;
echo 'get';
if (isset($this->_data[$offset]))
return $this->_data[$offset];
else
return $this->_handler->get($offset);
} publicfunction offsetSet($offset, $value)
{
if (!$this->_handler)
return false;
switch ($offset)
{
case '_host': $this->_host = $value; break;
case '_port': $this->_port = $value; break;
case '_expire': $this->_expire = $value;break;
case '_compress': $this->_host = $value; break; default:
if (emptyempty($value) && $value != '0')
$this->_handler->delete($offset);
else
$this->_handler->set($offset,$value,$this->_compress,$this->_expire);
}
$this->_data[$offest] = $value;
}
}
$_MEM = new _MEM('10.210.71.51');
举个小例子:
include_once('mem.class.php') ;
$_MEM['dd'] = "roast";
unset($_MEM['dd']); //delete a memcache value
var_dump($_MEM['dd']);
echo $_MEM->_host;
$_MEM['_host'] = '192.168.1.1'; //set the memcache server host
echo $_MEM->_host;
$_MEM['roast'] = '张立冰';
$memcache = new Memcache;
$memcache->connect('10.210.71.51', 11211) or die ("Could not connect");
var_dump($memcache->get('roast')); 您可能还喜欢