PHP绝对根路径和根URL

Question

Im trying to define the absolute root path and the root url of my app. I tried this , however I can't understand something yet.

I have created config.inc.php in the root folder with the code in the answer. Also I have the file index.php in the root in which I include config.inc.php and the constanst are fine. But I have another file in ${ROOT}/example/file.php where I also include config.inc.php but the root url contains the example folder in the end.

The app structure is:

config.inc.php
index.php
example/file.php

How can I always have the absolute root path and the root url of my app?

Thanks!

Answer 1

Absolute root path:

$_SERVER['DOCUMENT_ROOT']

Path from the root folder:

dirname($_SERVER['PHP_SELF'])

Answer 2

You can manually type an absolute and root url in config file and when include it he give you an variable with absolute and root url. For root directory you can use an $_SERVER['DOCUMENT_ROOT'] .

Answer 3

I've always used the following code in my php apps:

** config.php **

$base = str_replace(
    $_SERVER['DOCUMENT_ROOT'],
    '',
    realpath(dirname(__FILE__)));

$base = ($base == '') ? '/' : '';

You can include this file from anywhere and it will give the base uri of the folder config.php is in.

Answer 4

如果您正在使用Windows上的文件，那么您可能需要使用两者

$full_path = $_SERVER['DOCUMENT_ROOT'].dirname($_SERVER['PHP_SELF']);