$this->security->get returns Undefined Index error

[jsherk]

When I use $this->security->post['some_item'] and some_item is not set, it works fine (no error), but when you use $this->security->get['some_item'] and some_item is not set it gives you a warning/notice that says:
Undefined index: some_item

[TitanKing (titan-phpdevshell)]

This in general is standard PHP behavior. You need to check variables are set be fore using them. The empty() function works well for this.

if (! empty($this->security->get['some_item'])) {
    // Do something...
}