include/basis_db.class.php

@@ -0,0 +1,21 @@
+<?php
+require_once('basis.class.php');
+
+abstract class db extends basis
+{
+	protected static $db_conn=null;
+
+	function __construct()
+	{
+		if (is_null(db::$db_conn))
+			$this->db_connect();
+	}
+
+	abstract function db_connect();
+	abstract function db_query($sql);
+
+}
+
+require_once(DB_SYSTEM.'.class.php');
+
+?>