Computer Guru

<?php

/*
Name: eAccelerator for WordPress
Description: eAccelerator backend for the WP Object Cache.
Version: 0.5.1
URI: http://neosmart.net/dl.php?id=13
Author: Computer Guru
Author URI: http://neosmart.net/blog/

* Install this file to /wp-content/object-cache.php
* If on Windows, restart IIS after installing for best results

Thanks to Ryan Boren for his original memcached code.

*/

// Gracefully revert to default cache if eAccelerator is not installed
if ( !function_exists('eaccelerator_get') )
{
    include_once(ABSPATH . WPINC . '/cache.php');
}
else
{

function wp_cache_add($key, $data, $flag = '', $expire = 0)
{
    return wp_cache_set($key, $data, $flag, $expire);
}

function wp_cache_close()
{
    return true;
}

function wp_cache_delete($id, $flag = '')
{
    global $wp_object_cache;

    return $wp_object_cache->delete($id, $flag);
}

function wp_cache_flush()
{
    global $wp_object_cache;

    return $wp_object_cache->flush();
}

function wp_cache_get($id, $flag = '')
{
    global $wp_object_cache;

    return $wp_object_cache->get($id, $flag);
}

function wp_cache_init()
{
    global $wp_object_cache;

    $wp_object_cache = new WP_Object_Cache();
}

function wp_cache_replace($key, $data, $flag = '', $expire = 0)
{
    return wp_cache_set($key, $data, $flag, $expire);
}

function wp_cache_set($key, $data, $flag = '', $expire = 0)
{
    global $wp_object_cache;

    return $wp_object_cache->set($key, $data, $flag, $expire);
}

class WP_Object_Cache {
    var $global_groups = array ('users', 'userlogins', 'usermeta');
    var $cache = array();

    function delete($id, $group = 'default')
    {
        $key = $this->key($id, $group);
        $result = eaccelerator_rm($key);
        if ( $result )
            unset($this->cache[$key]);
        return $result;
    }

    function flush()
    {
        eaccelerator_clear();
        return true;
    }

    function get($id, $group = 'default')
    {
        $key = $this->key($id, $group);

        if ( isset($this->cache[$key]) )
            $value = $this->cache[$key];
        else
            $value = eaccelerator_get($key);

        $value = maybe_unserialize($value);

        /* echo "Cache key: $key<br/>";
        echo 'Cache value:<br/>';
        var_dump($value);
        echo '<br/>'; */
        if ( NULL === $value )
            $value = false;

        $this->cache[$key] = $value;

        return $value;
    }

    function set($id, $data, $group = 'default', $expire = 0)
    {
        $key = $this->key($id, $group);
        if ( is_resource($data) )
            return false;

        $data = maybe_serialize($data);

        $result = eaccelerator_put($key, $data, $expire);
        if ( $result )
            $this->cache[$key] = $data;

        return $result;
    }

    function key($key, $group)
    {
        global $blog_id;

        if ( empty($group) )
                $group = 'default';

        if (false !== array_search($group, $this->global_groups))
                $prefix = '';
        else
                $prefix = $blog_id . ':';

        return md5(ABSPATH . "$prefix$group:$key");
    }

    function stats()
    {
        // Note that this is the total eAccelerator stats, not just WP but also any other apps using eAccelerator var storage
        $eaccelerator_info = eaccelerator_info();
        echo "<p>\n";
                echo "<strong>Cached Variables:</strong> {$eaccelerator_info['cachedKeys']}<br/>\n";
                echo "<strong>Cached Scripts:&nbsp;&nbsp;</strong> {$eaccelerator_info['cachedScripts']}<br/>\n";
        echo "</p>\n";

        if ( !empty($this->cache) )
        {
            echo "<pre>\n\r";
            print_r($this->cache);
            echo "</pre>\n\r";
        }
    }

    function WP_Object_Cache()
    {
        // Empty Constructor
    }
}
} //End Else
?>