public static function cache($path, $data = null)
{
self::$cacheDir = rtrim(iPHP_RES_PAHT, '/') . '/' . trim(iPHP_RES_CACHE_DIR, '/') . '/';
$cachePath = self::cacheFilePath($path, $data === 'get' ? null : 'add');
$cacheTime = @filemtime($cachePath);
if ($cacheTime === false || iPHP_RES_CACHE_TIME > 0 && $_SERVER['REQUEST_TIME'] - (int) $cacheTime > iPHP_RES_CACHE_TIME) {
if ($data === 'get') {
return null;
}
self::write($cachePath, $data);
header('X-Thumb-Cache: SET-' . $_SERVER['REQUEST_TIME']);
return true;
}
header('X-Thumb-Cache: HIT-' . $_SERVER['REQUEST_TIME']);
return file_get_contents($cachePath);
}
