Codeigniter db update with where clause and custom var are not working

Can somebody tell me why my update did not work ?

Here are the data in my variable $id = '1'; $table = 'tb_home_content'; $data = Array ( [title] => SLEEK DESIGN [content] => We have a sleek design which not only attractive but simple in design for our user to see. [classicon] => fa fa-clone );

Here are my model function

    public function updateData($table, $data)
    {
        $id = $data['id'];
        array_shift($data);

        // echo $id.'<br>';
        // echo $table.'<br>';
        // print_r($data);

        $this->db->where('id', $id);
        $this->db->update($table, $data);

        if($this->db->affected_rows() == '1')
        {
            echo "<script>";
                echo "alert('Success');";
            echo "</script>";
        }
        else
        {
            echo "<script>";
                echo "alert('Failed');";
            echo "</script>";
        }