Re: How can I replace $_SERVER["DOCUMENT_ROOT"] in PHP 7.0?

On 14/09/2021 11:09, Bo Berglund wrote:
> On Tue, 14 Sep 2021 09:30:48 +0100, Ashley Sheridan <[email protected]>
> wrote:
>
>>> 1. curdir: /data/25/2/158/91/2484743/user/2721122/htdocs/log
>>> 2. docroot: /usr/services/vux/apache/htdocs
>>>
>>> Notice the vast difference between __DIR__ and $_SERVER['DOCUMENT_ROOT']!
>>> They are not even close!
>> They're not meant to be the same, I suggested using __DIR__ as you said
>> you had problems with $_SERVER['DOCUMENT_ROOT'], suggesting it was not set
> $_SERVER['DOCUMENT_ROOT'] seems to be set to:
>   /usr/services/vux/apache/htdocs
> which is an invalid path on the server (run by Network Solutions)
>
> The path reported by __DIR__ is:
>   /data/25/2/158/91/2484743/user/2721122/htdocs
> and if I use this in an include statement it works just fine.
>
> I have tested a lot of approaches and have concluded that this will in fact work
> from *any* subdirectory on the website even very deep:
>
> <?php
> $rootdir= substr(__DIR__, 0, strpos( __DIR__, 'htdocs')) . 'htdocs';
> include ($rootdir . '/php/logindata.php');
> echo "Mail sender: " . $mailsender ;
> ?>
>
> The result when executing it from a newly created directory several levels below
> htdocs is:
> Mail sender: [email protected]
>
>
>> * $_SERVER['DOCUMENT_ROOT'] should not be changing across scripts in a
>> website, suggesting the problem might be that it's not set to what you
>> think it is
> It is not changing but it is set to an erroneous path.
> I am not setting it, this is what PHP 7 supplies...
>
>> * Confirm $_SERVER['DOCUMENT_ROOT'] is exactly what you think it should
>> be across both versions
> It worked fine in PHP 5.3 on Network Solutions webhosting, but when I allowed an
> upgrade to PHP 7 on the site it was no longer working correctly...
>
>> If you go through the basic steps, you should see what the problem is.
> I do not know what "basic steps" you are referring to but I think I have
> outlined various tests I have done all giving the same result, i.e. if you are
> in the document root and use __DIR__ then you get one result (the correct one)
> but if you use $_SERVER['DOCUMENT_ROOT'] then you get a completely different
> (and erroneous) result. The latter worked fine with PHP 5.3, has been running
> for many years (about 8) without problems.
>
> These problems only surfaced with the update to PHP 7.0.33 a week ago.
>
> Maybe Network Solutions screwed up with their config of PHP 7?
>
The basic steps would have been just checking what 
$_SERVER['DOCUMENT_ROOT'] contained. That would have negated pretty much 
all the rest of the test code, etc, that you wrote, as that's the actual 
problem.

-- 
Ashley Sheridan
https://www.ashleysheridan.co.uk