Yii : What can block access to $_POST data? - post

Question

I am sending a post to a controller / action (not ajax).
Inside the action, I am doing the standard way of checking to see if it was a post (the exact way works in other actions I am using).
if( isset( $_POST['LessonForm'] ) )
{
...
}
else
{
Yii::trace( "Post Not Set" );
}
And the post is always not set.
However, if I put a var_dump( $_POST ); die(); in front of the conditional, I get this:
array(2) { ["LessonForm"]=> array(3) { ["title"]=> string(4) "test" ["shortDescription"]=> string(4) "test" ["image"]=> string(0) "" } ["yt1"]=> string(0) "" }
So the post is clearly there. Furthermore,
foreach( $_POST as $key => $value )
{
echo( $key.'<br>' );
}
I get this:
LessonForm
yt1
Further suggesting the post is there.
When trying to use the variable in $_POST, it is not there. If accessing it in a foreach loop and assigning it to a variable, I can vardump the variable but not use it.
To test if it was a accessControl problem, I removed all filters.
What can block access like this?
Update:
#Stu is correct in that it is not being sent as a POST. The form method is post. Not sure how else to force a post?
Update 2:
Problem is fixed, but I'm still not sure what was causing the CActiveForm to send a get rather than post and still include post data.
After removing the transaction from the model save, the problem vanished (it should not have been there in the first place).
Update 3:
The original problem was an actionCreate. That problem mysteriously vanished. Next was an actionEdit. The view rendered (with the form) is the same file. The action was copied and pasted with modifications as to how the data was being saved and getting the model rather than making a new one.
After looking at the network traffic, there is a post followed immediately by a 302 redirect that isn't in my code. For some reason Yii is forcing a 302 redirect to get to the action.

Answer 1

Yii has already abstracted out getting request variables whether they're POST or GET
Use: Yii::app()->request->getParam('SomeVarName', 'ADefaultValue');
To get a request variable and returning a sensible default if one doesn't exist. If you're having trouble sending the variables from the form in the first place though, that could be a different issue.