I noticed that require and includes can not include files that are above the directory of the calling file. Why does this occur?
Example:
This works:
<?php require_once('inc/configs.php'); ?>
This does not work:
<?php require_once('../template/header-home.php'); ?>
That is, if you have to add a file that is above the directory of the calling file, it gives error saying that the file was not found.
You can access yes! just know the simple technique.
Please note: the file I'll need is:
C:\xampp\htdocs\slug.php
The file I'm going to use to include "slug.php" is:
C:\xampp\htdocs\uploads\updoc.php
In the file "updoc.php" goes the simple code:
<?php
include_once("\..\slug.php");
It's very simple to access files wherever they are.
If the file "slug.php" is in the "xampp" folder next to the "aploads" folder
In Windows it would be:
<?php
include_once("\..\xampp\slug.php");
I hope I have helped!
Try using the constant __DIR__ :
require_once(__DIR__ . '/../template/header-home.php');