<?php
/**
* Temporary cache for sql
*
* @package classes
* @copyright Copyright 2003-2012 Zen Cart Development Team
* @copyright Created by Data-Diggers.com http://www.data-diggers.com/
* @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
* @version GIT: $Id: Author: Ian Wilson  Wed Jul 4 14:44:03 2012 +0100 New in v1.5.1 $
*
*/
/**
* QueryCache
*
*/
class QueryCache {
function QueryCache() {
$this->queries = array();
}
// cache queries if and only if query is 'SELECT' statement
// returns:
//	TRUE - if and only if query has been stored in cache
//	FALSE - otherwise
function cache($query, $result) {
if ($this->isSelectStatement($query) === TRUE) $this->queries[$query] = $result;
else return(FALSE);
return(TRUE);
}
function getFromCache($query) {
$ret = $this->queries[$query];
mysql_data_seek($ret, 0);
return($ret);
}
function inCache($query) {
return(isset($this->queries[$query]));
}
function removeFromCache($query) {
unset($this->queries[$query]);
}
function isSelectStatement($q) {
if(($q[0] == 's' || $q[0] == 'S')
&& ($q[1] == 'e' || $q[1] == 'E')
&& ($q[2] == 'l' || $q[2] == 'L'))
return(true);
return(false);
}
}