WARN: Undefinded index for POST or GET

- 217 Posts
kudykam Reply #1, 8 years, 11 months ago
Hi, I have snippet code:
```
$sent_id = (int) $_POST['favorite_page'];
if ($sent_id > 100000 or $sent_id == 0) return; 
$id = $modx->resource->get('id'); //current id
```
But warning in error log:
WARN @ /core/cache/includes/elements/modsnippet/75.include.cache.php : 3) PHP notice: Undefined index: favorite_page

What wrong in the code?
thanks...
- 24,544 Posts
BobRay Reply #2, 8 years, 11 months ago
Whatever is setting the $_POST variables is not setting the $_POST['favorite_page'] variable.

Normally, this would come from a form with something like this:
```
<form ... >
   <input type="text" name="favorite_page" ... >
</form>
```
Check the "name" of the field in the form to make sure it matches the code.

You could also add this line to the snippet:
```
$modx->log(modX::LOG_LEVEL_ERROR, print_r($_POST, true));
```
That will print the $_POST array to the MODX error log so you can see what's actually being sent.
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