CodeIgniter Download Helper

Download helper contains functions that help us for downloading data to our desktop.

Related Topics:

Codeigniter Interview Questions

CodeIgniter Text helper

CodeIgniter Directory helper

Loading this Helper:

Use the given line in your controller or model file to load the download helper.

$this->load->helper("download");

The following functions are available in this helper:

1 force_download(): This function is used to generates server headers which force data to be downloaded to your desktop.

Syntax:

force_download([name = ''[, $data = ''[, $set_mime = FALSE]]]);

Parameter Description:

• name (string) – Filename
• $data (mixed) – File contents
• $set_mime (bool) – Whether to try to send the actual MIME-type

The return type of this function is void.

• Example:

Step 1 Open the application/controllers directory and create a new controller file Force_download.php

<?php
   class Force_download extends CI_Controller {

      public function index() {
		 $this->load->helper('download'); //load download helper
		$data = 'Here is some text!';
		$name = 'mytext.txt';
		force_download($name, $data);
      }
   }
?>

Step 2 Open the given URL into the browser to see the result.

http://localhost/ci/index.php/Force_download

You can also download an existing file from your server by using this function.

• Example 2:

Step 1 Open the application/controllers directory and create a new controller file Force_download1.php

<?php
   class Force_download1 extends CI_Controller {

      public function index() {
		 $this->load->helper('download'); //load download helper
		force_download('uploads/icon-1.png', NULL);
      }
   }
?>

Step 2 Open the given URL into the browser to see the result.

http://localhost/ci/index.php/Force_download1