JQuery Ajax POST in Codeigniter

Question

I have searched a lot of tutorials with POST methods and saw answered questions here too but my POST still doesn\'t work...I thought i should post it here if you guys see so

Answer 1

The question has already been answered but I thought I would also let you know that rather than using the native PHP $_POST I reccomend you use the CodeIgniter input class so your controller code would be

function post_action()
{   
    if($this->input->post('textbox') == "")
    {
        $message = "You can't send empty text";
    }
    else
    {
        $message = $this->input->post('textbox');
    }
    echo $message;
}