(Yaf >=1.0.0)
Yaf_Request_Http::get — Retrieve variable from client
    Retrieve variable from client, this method will search the
    name in request pramas, if the name is not found,
    then will search in POST, GET, Cookie, Server
  
name
    the variable name
default
    if this parameter is provide, this will be returned if the varialbe can not be found