[PHP] Website Architecture

[Eric Gorr]

I've got a directory structure similar to this:

SiteRootDir

  index.php

  dirA
    index.php
  dirB
    funcs.php
  otherfuncs.php

In the SiteRootDir/index.php, I've got:

  require_once( dirB/funcs.php );

in funcs.php, I've got:

  require_once( otherfuncs.php );

which works because SiteRootDir/index.php is the location from which files
are looked for.
However, in dirA/index.php, I've got:

  require_once( ../dirB/funcs.php );

and require_once( otherfuncs.php ) in funcs.php cannot be
found.
A solution I found was in dirA/index.php, to chdir( ".." ); before
the require_once, which moves the current directory to SiteRootDir 
and allows otherfuncs.php to be found ... is this the best way to 
solve this problem?

A seperate, but related question....

funcs.php contains statements of the form:

  echo "<a href=\"directoryname\">linkname</a><br>";

forming a relative URL. Again, this would point to a different
location depending on whether dirA/index.php or SiteRootDir/index.php
called the function containing this relative URL and I want them to 
point to the same location.

I was able to find a solution by doing the following:

function AFunction( $toRoot )
{
  $location = $toRoot . "locationFromSiteRootDir";
  echo "<a href=\"$location\">linkname</a><br>";
}
So, from dirA/index.php, I would call AFunction like:

  AFunction( ".." );

Is this the best way to solve this problem?

Thank you.

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