Includes/Require path

NZ_Kiwis

I have a few files in my root directory. db.php and settings.php.

I have another file called, calculate_value.php in my root directory. This has a function in it that calls the db.php.

I then have a normal page, that calls calculate_value.php page and uses the function and displays the results to a user. All good.

The issue is, I'm now wanting to use the calculate_value.php from another folder mysite.com/members/my-page.php. When I call the calculate_value.php page, the db.php reference inside the function does not find the page as it's looking in the current folder. If i do require '../db.php'; it would work I assume but then in the root directory it wont.

How can I fix this?

NogDog

You can use $_SERVER['DOCUMENT_ROOT'] to start at what the web server is considering to be the document root.

include $_SERVER['DOCUMENT_ROOT'].'/file_in_root_dir.php';

That will find it regardless of where you call it in the directory tree.

Other alternatives are to set the include path, either in your php config or within the script via [man]set_include_path/man.

NZ_Kiwis

Great, thanks.

So what would I be getting "Notice: Undefined variable:..."

I have

localhost/root/settings.php
localhost/root/calculate_value.php (this includes the settings.php from within a function)
localhost/root/folder/member.php (this includes ../calculate_Value.php)

My error is on member.php saying undefined variable, that variable is declared in settings.php

Weedpacket

If by "(this includes the settings.php from within a function)" you mean

function something(...)
{
    include "settings.php";
}

Then variables declared in settings.php would be local to the function.

dalecosp

Weedpacket;11062559 wrote:
If by "(this includes the settings.php from within a function)" you mean
function something(...)
{
    include "settings.php";
}
Then variables declared in settings.php would be local to the function.

... unless they are specifically declared otherwise, say, by adding them to $GLOBALS, or are put into a superglobal array, or are actually constants (which your sentence didn't address, but that's overly pedantic), or are returned, or some other magic of a similar or otherwise weird nature. But, yeah 😉 Great catch.

Sometimes you guys read English better than I do.