function &cachedExecute($arr = null, $timeout = 30)
{
if (function_exists('hash')) {
$hash = 'sqlc' . hash('sha1', $this->queryString . serialize($arr));
} else {
$hash = 'sqlc' . sha1($this->queryString . serialize($arr));
}
if (MemoryCache::find($hash)) {
return MemoryCache::get($hash);
}
$this->execute($arr);
if (!$this->rowCount()) {
$rows = array();
} else {
$rows = $this->fetchAll();
}
MemoryCache::put($hash, $rows, $timeout);
return $rows;
}
public static function put($id, $val, $timeout = 30)
{
$res = MemoryCache::put($id, $val, $timeout);
$res &= DiskCache::put($id, $val);
return $res;
}