[PHP] (Drupal function) getting error : notice : Undefined index ?

[fatih olcer]

hi,


i have installed drupal 4.2.0 without any problems. but when i try to
connect to
my local webserver i get errors: notice : Undefined index
i couldnt  get any reply to my messages from drupal.com.

i think i have a configuration problem. but i couldn't find any
solution. i can run the same code without any problems on win98 (phpdev5
installed)
i have changed some php.ini settings like display_errors = off 
but still getting errors.


- what causes Undefined index error?
- what is the problem on function node_page() (see below) ?

i'm php newbie.  thanks for help.

op. system  :  RH9 (with apache,php on it)
drupal version :  4.2.0

thanks .
Fatih Olcer.


// here is a sample code to generate the error:
function node_page() {
global $id, $user, $or, $and;

 $op = $_POST[op]; //error line error line  error line error line  error
line
 $edit = $_POST[edit];

 if (user_access(access content)) {
   if (empty($op)) {
 $op = arg(1);
   }

   if ($op == feed) {
 node_feed();
 return;
   }

   if ($op == view) {
 $node = node_load(array(nid = arg(2), status = 1),
$_GET[revision]);
   }

   theme(header, $node-title);

   $name = module_invoke(arg(2), node, name);

   switch ($op) {
 case add:
   theme(box, t(Submit $name), node_add(arg(2)));
   break;
 case edit:
   theme(box, t(Edit $name), node_edit(arg(2)));
   break;
 case view:
   print node_show($node, arg(3));
   break;
 case t(Preview):
   $edit = node_validate($edit, $error);
   theme(box, t(Preview $name), node_preview($edit, $error));
   break;
 case t(Submit):
   theme(box, t(Submit $name), node_submit($edit));
   break;
 case t(Delete):
   theme(box, t(Delete $name), node_delete($edit));
   break;
 default:
   $result = pager_query(SELECT nid, type FROM {node} WHERE
promote = '1' AND status = '1' ORDER BY static DESC, created DESC,
variable_get(default_nodes_main, 10));

   while ($node = db_fetch_object($result)) {
 node_view(node_load(array(nid = $node-nid, type =
$node-type)), 1);
   }
   print pager_display(NULL, variable_get(default_nodes_main,
10));
   }

   theme(footer);
 }
 else {
   theme(header);
   theme(box, t(Access denied), message_access());
   theme(footer);
 }

}

-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Re: [PHP] (Drupal function) getting error : notice : Undefined index ?

[Curt Zirzow]

* Thus wrote fatih olcer ([EMAIL PROTECTED]):
 hi,
 
 
 i think i have a configuration problem. but i couldn't find any
 solution. i can run the same code without any problems on win98 (phpdev5
 installed)
 i have changed some php.ini settings like display_errors = off 
 but still getting errors.

IMO, turning errors of is a bad thing, a program should run
smoothly without errors.  Although with 3rd party packages
sometimes this is hard to avoid.

 
 
 - what causes Undefined index error?

An undefined index error is caused when accessing an index that
doesnt exist, so if you have an array as follows:
  $var = array('index1' = 'value');

And you try to access:
  echo $var['index2'];

The error will get displayed.

 - what is the problem on function node_page() (see below) ?

Sorry unable to help you with this.

Curt
-- 
I used to think I was indecisive, but now I'm not so sure.

-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php