File linkage in PHP

Question

I need some help in linking a file in php.

Here is what I am looking for:

I have two files process.php and index.php, both placed in different directories.

This is the full path to process.php file:

/home/happy92a/public_html/ggytg45ffs43456/wp/wp-content/themes/Funizm/loginsystem/process.php

I want to require_once index.php within the process.php file, How can I require it, here is the full path of index.php:

/home/happy92a/public_html/ggytg45ffs43456/wp/wp-content/plugins/plugged/index.php

I have already tried:

dirname(__FILE__) but it gives the path to the current file (process.php) not the (index.php) which I want to include within process.php file.

I have also tried it with $_SERVER['DOCUMENT_ROOT'] but still it does not work also I have read it is bad practice to use server variable.

Answer 1

Use DOCUMENT_ROOT:

require_once($_SERVER['DOCUMENT_ROOT'] . '/ggytg45ffs43456/wp/wp-content/plugins/plugged/index.php');

Answer 2

i am assuming your DOCUMENT_ROOT is at /home/happy92a/public_html/ if so using that as a base to build an absolute path by doing the following.

require_once ($_SERVER['DOCUMENT_ROOT'] . "/ggytg45ffs43456/wp/wp-content/plugins/plugged/index.php");

I read that you do not wish to use DOCUMENT_ROOT. you can then establish a constant for your wordpress installation called WP_DIR

define('WP_DIR', '/home/happy92a/public_html/ggytg45ffs43456/wp/');
require_once (WP_DIR . "wp-content/plugins/plugged/index.php");

Answer 3

try

require_once('./ggytg45ffs43456/wp/wp-content/plugins/plugged/index.php');