/**
* Convert data to a string and store it to a server cache file
* If $cache_string is an array, it'll be converted to a string
* If $save is string, it'll be used for building the cache filename
*
* @param string|array $cache_string
* @param string|boolean $save write to a file
* @return e_pref
*/
protected function setPrefCache($cache_string, $save = false)
{
if (is_array($cache_string)) {
$cache_string = e107::getArrayStorage()->WriteArray($cache_string, false);
}
if (is_bool($save)) {
$this->pref_cache = $cache_string;
}
if ($save) {
ecache::set_sys('Config_' . ($save !== true ? $save : $this->alias), $cache_string, true);
}
return $this;
}
