View file stat/_core/_class/cache_config.php

<?php
class cache_config {
	public static function get() {
		$file = cache."_config/data.data";
		$cache = @file_get_contents($file);
		return unserialize($cache);
	}

	public static function save() {
		$file = cache."_config/data.data";	
		$cache = DB :: $dbh -> queryFetch("SELECT * FROM config WHERE id = 1 LIMIT 1");	
		$cache = serialize($cache);	
		@file_put_contents($file, $cache);
	}

	public static function check() {
		$file = cache."_config/data.data";	
		if(!file_exists($file)):  	
			self::save();
		endif;
		return self::get();
	}
}	
?>