PHP absolute path to root

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I can't believe PHP doesn't have an easy solution for this simple matter. ASP.NET has a ~ sign that takes care of this issue and starts everything from the root level. Here's my problem:

localhost/MySite
   -->Admin
      -- Edit.php
   -->Class
      -- class.EditInfo.php
   -->Texts
      -- MyInfo.txt
   --ShowInfo.php

Inside class.EditInfo.php I am accessing MyInfo.txt so I defined a relative path "../Texts/MyInfo.txt". Then I created an object of EditInfo in Admin/Edit.php and accessed Texts/MyInfo.txt - it worked fine.

But now I have to create an object of EditInfo in ShowInfo.php and access Texts/MyInfo.txt and here's the problem that occurs. As I am using a relative path in my class, whenever I am creating an objEditInfo and trying to access MyInfo.txt I am getting "File doesn't exist" error.

Now I am looking for something that's equivalent to "~/Texts/MyInfo.txt" from ASP.NET. Is there anything similar to that out there??? Or do I have to set the path with some if/else condition?


UPDATE:

I used $_SERVER['DOCUMENT_ROOT']. I was using a subfolder where my actual website was. So I had to use $_SERVER['DOCUMENT_ROOT']."/mySite" & then adding rest of the address ("/Texts/MyInfo.php") to it.

8 Answers

The best way Using dirname(). Because SERVER['DOCUMENT_ROOT'] not working all servers, and also return server running path.

$root = dirname( __FILE__ );

$root = __DIR__;

$filePath = realpath(dirname(__FILE__));

$rootPath = realpath($_SERVER['DOCUMENT_ROOT']);

$htmlPath = str_replace($root, '', $filePath);

This is my way to find the rootstart. Create at ROOT start a file with name mainpath.php

<?php 
## DEFINE ROOTPATH
$check_data_exist = ""; 

$i_surf = 0;

// looking for mainpath.php at the aktiv folder or higher folder

while (!file_exists($check_data_exist."mainpath.php")) {
  $check_data_exist .= "../"; 
  $i_surf++;
  // max 7 folder deep
  if ($i_surf == 7) { 
   return false;
  }
}

define("MAINPATH", ($check_data_exist ? $check_data_exist : "")); 
?>

For me is that the best and easiest way to find them. ^^

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