SOLVED: Re: [PHP] Document root, preferred way to find it???

[Leif Gregory <php@xxxxxxxxxx>]

Hello Tom,

Sunday, March 6, 2005, 10:00:17 PM, you wrote:
TR> Ok I see where is is going wrong, try this:

Oooooh, very close. Although you have it at $document_root and all
that needs to be added is '/include' like below:

$include = $document_root . '/include';

Otherwise it's one directory too far up because you're replacing the
site root 'test' (in this case) with 'include'.

We wanted: 'C:/Sambar/docs/test/include'

Here's from your script.

Site root:
**********

File name: C:/Sambar/docs/test/test.php
Script: /test.php
Document root: C:/Sambar/docs/test
Base: test
Include: C:/Sambar/docs/include
OS: winnt
Include: C:/Sambar/docs/include;.;C:\php5\pear

**********

Site root/folder1
**********

File name: C:/Sambar/docs/test/folder1/test.php
Script: /folder1/test.php
Document root: C:/Sambar/docs/test
Base: test
Include: C:/Sambar/docs/include
OS: winnt
Include: C:/Sambar/docs/include;.;C:\php5\pear

**********

Site root/folder1/folder2
**********

File name: C:/Sambar/docs/test/folder1/folder2/test.php
Script: /folder1/folder2/test.php
Document root: C:/Sambar/docs/test
Base: test
Include: C:/Sambar/docs/include
OS: winnt
Include: C:/Sambar/docs/include;.;C:\php5\pear

**********



After my change:

File name: C:/Sambar/docs/test/folder1/folder2/test.php
Script: /folder1/folder2/test.php
Document root: C:/Sambar/docs/test
Base: test
Include: C:/Sambar/docs/test/include
OS: winnt
Include: C:/Sambar/docs/test/include;.;C:\php5\pear

The other two folders moving back up the tree are the same result.

So the final looks like:
************************

if(isset($_SERVER["SCRIPT_FILENAME"])){
        $file_name = str_replace('\\','/',$_SERVER['SCRIPT_FILENAME']);
        echo "File name: $file_name<br>";
        
        $script = str_replace('\\','/',$_SERVER['SCRIPT_NAME']);
        echo "Script: $script<br>";
        
        $document_root = str_replace($script,'',$file_name);
        echo "Document root: $document_root<br>";
        
        $base = basename($document_root);
        echo "Base: $base<br>";
        
        //$include = str_replace($base,'include',$document_root);
        $include = $document_root . '/include';
        echo "Include: $include<br>";
        
        $os = strtolower(PHP_OS);
        echo "OS: $os<br>";

        $lk = ':';
        $org_include = ini_get("include_path");
        if(preg_match('/^win/i',$os))   $lk = ';';
        
        ini_set("include_path",$include.$lk.$org_include);
        echo "Include: ".ini_get("include_path")."<br>";
}

************************

It's a great effort and looks bulletproof. Can you shoot any holes in
mine? A full explanation at:
http://www.devtek.org/tutorials/dynamic_document_root.php

I only throw mine back out there because it's shorter. I think it's
solid, but only because I haven't broken it yet. :-)

Both our solutions suffer the same problem. They have to be on every
page that requires an include, because we can't rely on a new host
having our code in their auto_prepend file

**********

function dynRoot()
{
  $levels = substr_count($_SERVER['PHP_SELF'],"/");

  for ($i=0; $i < $levels - 1; $i++)
  {
    $relativeDir .= "../";
  }

  return $relativeDir;
}    

include(dynRoot() . 'includes/somefile.php')

**********

Thanks again!


Cheers,
Leif Gregory 

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