Comments on: Creating a PHP CMS – Part 4

By: ivan

ivan — Wed, 04 May 2011 09:09:05 +0000

Hello,

Please send me a complete function.php files,or upload here.Somewhere I'm wrong because I do not understand the above description, but I do not know where.

Thanks,

Ivan

By: Eric Bannatyne

Eric Bannatyne — Wed, 29 Dec 2010 18:57:20 +0000

See my response to Louis' comment. tl;dr: Change if($_GET['id']) to if(isset($_GET['id'])) to check if the variable exists or not, rather than check if its value is true and potentially try to use a variable that may not exist.

By: Dorjee

Dorjee — Wed, 29 Dec 2010 10:52:52 +0000

Hi! I am getting an error message

Notice: Undefined index: id in C:\wamp\www\cms\functions.php on line 36
freetibet

Notice: Undefined index: id in C:\wamp\www\cms\functions.php on line 60
fdasfdafdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfdfdfadsfdasfadsfd

Notice: Undefined index: id in C:\wamp\www\cms\functions.php on line 82
Dec 22, 2010

Line 19/36/60/82 in function.php is
..... if ($_GET['id'])
Line

Plzz can you please help with this...
And in case, if I put ?id=2 at the end, it work fine...

By: Eric Bannatyne

Eric Bannatyne — Tue, 16 Nov 2010 06:13:39 +0000

The main reason for using a database entry to store the home id, as opposed to using constants, is to allow you to easily change it via the admin panel, as you'll see in a later part of the tutorial series, which would be more difficult to do using constants.

Also, I apologize for being late to approve comments, I haven't been receiving email notifications for some reason :/

By: rognvaldr

rognvaldr — Wed, 10 Nov 2010 13:16:34 +0000

Would it be better if the entries in the `settings table` be defined as constants in the config file instead?

I find it cumbersome to e.g. make a database request just to get homepage id.

But other than that, awesome tutorial. I have no problem with the coding. I just don't know how exactly CMS are put together.

By: Eric Bannatyne

Eric Bannatyne — Wed, 20 Oct 2010 23:12:26 +0000

It looks like $_GET['id'] doesn't exist. Try testing to see if it exists using isset($_GET['id']), and see if that helps.

By: Louis

Louis — Wed, 20 Oct 2010 09:41:31 +0000

Sorry it didn't come up here is line 22
if (in_array($_GET['id'], $IDs) || !$_GET):

By: Louis

Louis — Wed, 20 Oct 2010 09:38:26 +0000

I am actually learning using your codes. I download it and copied it verbatin just to get a grip. This is line 22 - Not found

By: Eric Bannatyne

Eric Bannatyne — Tue, 19 Oct 2010 23:07:52 +0000

"Undefined index" means that you are trying to access an element of an array that doesn't exist. In this case you're trying to access something like $arr['id'], which does not exist. What exactly do you have on line 22?

By: Louis

Louis — Tue, 19 Oct 2010 20:52:42 +0000

I keep getting this error message
Notice: Undefined index: id in C:\wamp\www\cms\index.php on line 22

What could be the proble?