Re: nested includes fails?

A brief directory structure: "e:\...\myapp\" - this my web apps root and it contains several subdirs: "e:\...\myapp\members\" - a normal, web shared subdir "e:\...\myapp\inc\" - an include subdir where are located all my include files and this subdir is not web shared (though my Inetpub dir is located in C:, I use IIS's virtual app/dir located in a different volume E:) The above "inc" subdir contains "common.php" which is used by all other script files located anywhere under app root and subdirs. So if a script is located in the "inc" subdir, then it may start with: <?php require_once('common.php') ?> If a script is in the root dir, then: <?php require_once('inc/common.php') ?> and if it is in other subdirs (e.g. "members"): <?php require_once('../inc/common.php') ?> Finally, when my script located in 'members' needs some include file from the "inc" dir, I include it in this manner: <?php require_once('../inc/some_include.php') ?> and I do not include "common.php" directly because "some_include.php" starts with: <?php require_once('common.php') ?> I.e. a rule is: a script does not include "common.php" if it includes some other include file because that include file already includes "common.php". That works fine untill I included 2 and more files: <?php require_once('../inc/some_include.php') ?> <?php require_once('../inc/other_include.php') ?> where each of these include files includes "common.php". In this case, "common.php" is included in a calling script file 2 times, even "require_once()" is used. And this leads to a trouble. Currently, I use absolute pathes hoping that when my app moves to Linux/Appache, relative pathes will work normally.