Codeigniter - 文件上传路径 文件夹创建

使用Codeigniter框架进行文件上传和文件夹创建是一个常见的需求。Codeigniter提供了方便的文件上传类和文件夹操作方法，使开发人员能够轻松地实现这些功能。本文将介绍如何在Codeigniter中进行文件上传和文件夹创建，并提供一些案例代码来帮助读者更好地理解和应用这些技术。

defined('BASEPATH') OR exit('No direct script access allowed');
class Upload_controller extends CI_Controller {
    public function __construct() {
        parent::__construct();
        $this->load->helper(array('form', 'url'));
    }
    public function upload_file() {
        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = 2048;
        $this->load->library('upload', $config);
        if (!$this->upload->do_upload('userfile')) {
            $error = array('error' => $this->upload->display_errors());
            $this->load->view('upload_form', $error);
        } else {
            $data = array('upload_data' => $this->upload->data());
            $this->load->view('upload_success', $data);
        }
    }
}

defined('BASEPATH') OR exit('No direct script access allowed');
class Folder_controller extends CI_Controller {
    public function create_folder() {
        $path = './uploads/new_folder/';
        if (!is_dir($path)) {
            mkdir($path, 0777, true);
        }
    }
}