如何通过http协议从根目录访问脚本？

Question

I have this folder-structure:

\out
    \script.php
\root
    \include
        \calculator.php

I need that script into \\calculator.php . How can I include it?

// calculator.php
require( what path ? );
 ..

Note: I can include it by this path: ../out/script.php . But I also need to pass a argument to script.php . So I want something like this:

.. what path/script.php?arg=value

And as you know, because I need to pass a argument to that, so I have to use http protocol. All I want to know, How can I use both http and ../ ? Something like this:

http://../out/script.php?arg=value

Answer 1

You don't need to pass parameters when you include the script because it's loaded into the same scope as the first script. This means that the script ../out/script.php has access to the query string arguments through the $_GET variable:

$_GET['arg']

Also, any variables you define in calculator will be available in script.php

Answer 2

You could instantiate some variables inside the $_GET superglobal before you include your file, ie

$_GET['arg'] = "value";
require('../../out/script.php');

But that isn't ideal, in my opinion.

If I were you I'd use a boring 'ol global variable (assuming you start in the global scope):

$arg = 'value';
require('../../out/script.php');

Then simply use it like any other variable (maybe with some sanity checking, though):

if (!isset($arg)) {
    die('Oh my! $arg is not set! Error! Danger!');
}

do_something_with($arg);