php如何从另一个文件夹中包含文件

Question

I want include file from another folder. i used different ways but nothing helped me out. One folder back solution and two folders back none gave me any positive respone.

<?php
   include_once('./../models/config.php');
?>

Answer 1

The folder where the file is, and the file master.php are in the same folder :

<?php include_once('models/config.php'); ?>