class_cacheVar.php

<?php
/*
This file is part of Mkframework.

Mkframework is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License.

Mkframework is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with Mkframework.  If not, see <http://www.gnu.org/licenses/>.

*/
class _cacheVar{
    
    protected $_oFile=null;
    
    private function load($sId){
        if($this->_oFile){
            return;
        }
        $oFile=new _file(_root::getConfigVar('path.cache').$sId.'.cachevar');
        $this->_oFile=$oFile;
    }
    
    public function isCached($sId,$iMinute=null){
        $this->load($sId);
        if($this->_oFile->exist()){
            if($iMinute==null){
                return true;
            }else if( (time()-$this->_oFile->filemtime()) < ($iMinute*60)){
                return true;
            }
            return false;
        }
        return false;
    }
    public function getCached($sId){
        $this->load($sId);
        $uData=unserialize($this->_oFile->getContent());
        return $uData;
    }
    public function setCache($sId,$uData){
        $this->load($sId);
        $sData=serialize($uData);
        
        $this->_oFile->setContent($sData );
        $this->_oFile->save();
    }
    public function clearCache($sId){
        $this->load($sId);
        $this->_oFile->delete();
    }


}