Passing $Data to the Controller from View?

[eluser]mddd[/eluser]
You shouldn't think of "sending from Controller to View". You probably mean sending information while requesting a new web page.
You could do this through the url (www.example.com/controller/method/argument) or using a form to POST information to the page.
In both occasions, there is no certainty of what a user can send. You must always check if the user's input is safe to use.