Dropbox Uploader is a PHP class which can be used to upload files to Dropbox, an online file synchronization and backup service.

Its development was started before Dropbox released their API, and to work, it scrapes their website. So you can and probably should use their API now.

You can use it to create a file upload form for your website, which uploads files to your dropbox. The example.php is a good start; just remove the email/password/destination fields and insert the respective values.

If you have too much time on your hands, you can even create a service to offer the above to non-technical persons.

require 'DropboxUploader.php';

$uploader = new DropboxUploader('[email protected]', 'password');
$uploader->upload('path/to/a/file.txt');

For a more complete usage example, see example.php.

Dropbox Uploader is licensed under the MIT License.

I'm getting the following error:

Error: Cannot execute request: SSL certificate problem, verify that the CA cert is OK.⤦
⤥ Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

This means that the certificate of the Certification Authority (CA) that Dropbox uses for their SSL certificates is not installed on your system or PHP/cURL is not configured correctly to find it.

If you ARE the system administrator, try installing the CA certificates bundle to a system-wide location. If you use a package management system, this will ensure that they are kept up to date automatically. On Debian Linux for example, you can install the package ca-certificates.

If you are NOT the system administrator, you can download just the needed certificate and point DropboxUploader to it (before calling the upload() method):

$uploader->setCaCertificateFile("path/to/the/certificate.cer");