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| class Cache
{
private $_cacheDir;
public function __construct($_cacheDir = null)
{
if(!$_cacheDir){
$this->_cacheDir = '/cache';
}elseif (is_dir($_cacheDir)){
$this->_cacheDir = $_cacheDir;
}else {
throw new Exception('repertoire de cache inexistant');
}
if(!is_dir($this->_cacheDir)){
throw new Exception('le dossier "cache" n\'existe pas');
}
}
private function getFileName(&$request)
{
$request = (string)$request;
if(!$request){ return fasle; }
return (string)$this->_cacheDir.'/'.md5($request).'.cache';
}
public function put($request,$data)
{
$fileName = $this->getFileName($request);
return file_put_contents($fileName,$data);
}
public function get($resquest)
{
$fileName = $this->getFileName($resquest);
return file_get_contents($fileName);
}
public function clear($request = null)
{
if($request){
unlink($this->getFileName($request));
}else {
$dir = opendir($this->cacheDir);
if(!$dir){ return false;}
while(($file = readdir($dir)) !== false){
if(eregi('^[0-9A-Z]+\.cache',$file)){
unlink($this->cacheDir.'/'.$file);
}
}
closedir($dir);
}
return true;
}
}
?> |
