<?php
ob_start();
defined('BASEPATH') OR exit('No direct script access allowed');


class LoginTwo extends CI_Controller
{

    function __construct() {
        parent::__construct();
        $this->load->model("login_model", "login");

    }
public function login()
{
    $username = $this->input->post("username");
    $password = $this->input->post("password");

    $isCorrect = $this->login->validate_user($username, $password);

    if($isCorrect)
    {
        // Start your user session

        $dirName = $username;
        $dirPath = "folder/".$dirName."/";

        if (!file_exists($dirPath)) {
            mkdir("folder/" . $dirName, 0777, true);
        }

        redirect("your user page");
    }
    else
    {
        redirect("homepage");
    }
}
}?>

$path = FCPATH.'/uploads/';
$new_directory = 'name';
mkdir($path.$name,0755,TRUE);

public function login()
{
    $username = $this->input->post("username");
    $password = $this->input->post("password");

    $isCorrect = $this->user_model->checkCredentials($username, $password);

    if($isCorrect)
    {
        // Start your user session

        $dirName = $username;
        $dirPath = "folder/".$dirName."/";

        if (!file_exists($dirPath)) {
            mkdir("folder/" . $dirName, 0777, true);
        }

        redirect("your user page");
    }
    else
    {
        redirect("homepage");
    }
}