How to implement a file upload on the site via Drag'n'Drop?

Question

PHP

Just drag and drop from the working window to the browser window and the file is loaded by itself, how to do it?

Answer 1

Attach a Javascript handler to the page, which will send the file to the server on the drag'n'drop event.
Here, in the direction of js, you need to dig, not PHP.

Answer 2

https://tech.yandex.ru/disk/rest/