problem with "Notice: Use of undefined constant"

[cardwell164]

Hello!

 

First of all, i would like to thank everyone in this community as this is where i post most of the problems that i can no longer fix on my own. and everytime i do, i get all the help i need and with a 100% success rate.

 

Anyway, i am following a tutorial, however the tutorial is based on a MAC environment and i am working on windows. I think this is a problem with the DIRECTORY_SEPARATOR but i might be wrong.

 

I am getting this error message "Notice: Use of undefined constant LIB_PATH - assumed 'LIB_PATH' in C:\wamp\www\beyond_basics_photogallery\includes\database.php on line 2"

 

i will just post the code that is relevant to this error. here is the code for database.php: (config.php is in the same folder with database.php)

require_once(LIB_PATH.DS."config.php");

and this is my initialize.php where i initialized my DIRECTORY_SEPARATOR. this is also located in the same folder with database.php

<?php

// Define the core paths
// Define them as absolute paths to make sure that require_once works as expected

defined('DS') ? null : define('DS', DIRECTORY_SEPARATOR);

defined('SITE_ROOT') ? null : 
	define('SITE_ROOT', DS.'wamp'.DS.'www'.DS.'beyond_basics_photogallery');

defined('LIB_PATH') ? null : define('LIB_PATH', SITE_ROOT.DS.'includes');

// load config file first
require_once(LIB_PATH.DS.'config.php');

// load basic functions next so that everything after can use them
require_once(LIB_PATH.DS.'functions.php');

// load core objects
require_once(LIB_PATH.DS.'session.php');
require_once(LIB_PATH.DS.'database.php');

// load database-related classes
require_once(LIB_PATH.DS.'user.php');

?>

and this is the path to my project folder: C:\wamp\www\beyond_basics_photogallery

 

I have tried everything i could but i am completely lost as to what is causing this. could it be the SITE_ROOT statement?

 

i appreciate any help. thanks!

 

 

[bsmither]

I am not at all sure the ternary format is conducive to making statements (sorry, I don't have the terminology to name this type of statement).

 

As best I know, the ternary format is supposed to return a value from two expressions, one for true and one for false, and assign it to a variable, or to use it 'in-line'.

 

So, this, define('DS', DIRECTORY_SEPARATOR), doesn't evaluate to anything. It certainly does something, but is doing something in this context the same as making a result available for use.

 

(I've seen some weird statement formulations, especially with the for() parameters, so this may be perfectly legitimate.)

 

But I have my doubts. So, I would experiment with:

if(!defined('DS')) define('DS', DIRECTORY_SEPARATOR);

Edited May 19, 2014 by bsmither

[QuickOldCar]

Use the $_SERVER variables for setting your paths

 

http://us1.php.net/manual/en/reserved.variables.server.php