How to define path for subfolder - php

I'm learning PHP and I'm having problems with the definition of the path.
If in the settings.php file located in the main folder I define a constant with the base path of the site to be able to use this constant in the subfolders I must include the file settngs.php precept by "../" as in the following way: ". ./settings.php "
is there any way to define the settings.php path that is also usable in the subfolder files without having to manually add "../" before the file name?
or a way to define constants usable in every file without including the file that contains the constants?
settings.php:
// FILE SETTINGS.PHP IN THE MAIN DIRECTORY
define('SITE_URL','http://localhost/');
admin/index.php:
// FILE INDEX.PHP IN THE ADMIN SUBDIRECTORY
include('../settings.php');
HOME
There is a way to have SITE_URL working without include('../settings.php') or there is a way to include "settings.php" in subdirectory without the "../" ??

Yes, you can use set_include_path function.
For example:
set_include_path(__DIR__.'/../');
Then include file from parent directory
include 'settings.php';

Related

path issue with include in PHP

I have an index.php in root and a 'includes' folder containing header.php and footer.php.I included header and footer in index.php and it works fine but in header and footer I include some different files in config folder in root.
I know that I should use "../config/config.php" but it works with 'config/config.php'.
I included header and footer in index.php and I should use path according to the index that I included to ???
what if I include one file in several folders ???
Try to use __DIR__ it will give you the path compared to where your current file exist, also try to use include_once instead of include
DIR : The directory of the file. If used inside an include, the directory of the included file is returned. This is equivalent to
dirname(FILE). This directory name does not have a trailing slash
unless it is the root directory.
Include your file like this from within your header.php and footer.php:
include_once DIR.'/../config/config.php';
do the same technique for other files
Yes your path should be according to index.php that's mean your root directory, not your includes folder.
At any time you can check such issues by
echo __DIR__;
to make sure from your path.

include file(s) from another directory

Currently I am trying to include a PHP file from another directory.
public_html/a/class/test.php <-- from this file i would to include a file from
public_html/b/common.php <-- wanted to include this file
Not sure what I should do because I have tried using
dirname(__FILE__)
and this keeps on returning public_html/a/ for me instead.
I have tried something like this
dirname(__FILE__).'/../b/common.php'
but it does not help me in getting my file.
You can simply keep moving up the directory tree until you have the common ancestor:
require dirname(dirname(__DIR__)) . '/b/common.php';
The magic constant __DIR__ equals dirname(__FILE__), and was introduced in 5.3. Each use of dirname() goes back one directory, i.e.:
dirname('public_html/a/class'); // public_html/a
dirname('public_html/a'); // public_html
Btw, editors such as PhpStorm also understand this use of relative paths.
First of all i suggest you to define a variable for basepath and include that defined variable in relative files.
// This should be on any root directory file
define("PR_BASEPATH", dirname(__FILE__));
And according to your implementation, Assume you are in
public_html/a/class/test.php
and dirname(__FILE__) returns the directory name of the current file that always return the directory class according to test.php file.
And you want to include public_html/b/common.php that is on the other directory /b. So you have to get the document root directory first.
include $_SERVER['DOCUMENT_ROOT'] . "/b/common.php";
Take a look on $_SERVER['DOCUMENT_ROOT']
include('../../b/common.php');
would include file for you, make sure both directory have same usergroup as user.

understanding php directories

My database config class file is bellow
pard_config/class/Config.php
pard_config is a folder which is in the root folder.
And i have a json file which contain,host name,database,user and password details
pard_config/class/config.json
How would i include Config.json file to the Config.php file without reading it from the root.For now i'm doing it like bellow
Config.php
include("pard_config/class/config.json");
Config.json and the config.php files are in the same folder.So is there any way to read from that class folder like bellow ???
Config.php
include(config.json);
I would advice you to use a relative path and use the __DIR__ constant:
include(__DIR__ . '/config.json');
note that paths will be resolved from the script which where called in browser (or command line) .. like index.php. Therefore it will suite better in many cases to use a relative path.

require_once files from another directory requiring within

This is a big confusing but I'll try to be as clear as possible.
I am using the Starter Site PHP Template in Web Matrix for an assessmnent, now when I move several files such as the files containing the database details, header, footer ect.. into the admin file I am having an issue with my index.php and page.php.
These files use require_once() to include several files within the admin folder. However in the admin folder the files being required have require_once tags again within that directory.
When I use require_once('admin/database.php'); the database file has require_once(somefile.php) within it. There are numerous files like this being included.
How can I use include these files using require_once in the root directory without getting errors like these.
warrning: require_once(/Includes/simplecms-config.php): failed to open stream: No such file or directory in C:\xampp\htdocs\starter-ste\admin\Includes\connectDB.php on line 2
The includes folder is located within the /admin/ folder.
php require statements will look for files in the current directory and directories in the php_include_path. You can solve your problem by adding your include directories to include path.
You can do this dynamically by calling set_include_path
$directories = array('/library', 'var/', get_include_path());
set_include_path(implode(PATH_SEPARATOR, $directories));
[EDIT]
Your server might not know where the root directory of the website is. So, first, get the document's root directory and append it to the file name like this:
$root = realpath($_SERVER['DOCUMENT_ROOT']);
require_once "$root/your_file_path_here";
Looks like you haven't enclosed the file name within quotes. So that
line should probably be like this:
require_once("/Includes/simplecms-config.php");

Smarty: including a template file from the same directory

I have a Smarty template located in a directory under templates_dir: templates/some/dir/template.tpl . In the same directory, I have a sub-template: templates/some/dir/_component.tpl .
I can't include the sub-component using an unqualified include, since apparently it looks it up under the templates_dir:
{include file='_component.tpl'}
How can I tell Smarty to read the file from the same directory, as opposed to the templates root ? I do not want to specify absolute paths, since it will cause problems when changing directory structures.
Could your app pass the template dir to the template so it can use it to create an absolute path?
$smarty->assign('template_d­ir', $smarty->template_d­ir);

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