Is drag and drop functionality typically implemented using PHP or JavaScript?

Drag and drop functionality is typically implemented using JavaScript, as it requires client-side interaction and manipulation of elements on a webpage. PHP is a server-side language and is not directly involved in the drag and drop process. To implement drag and drop functionality, you would need to use JavaScript libraries such as jQuery UI or native HTML5 drag and drop API.

// PHP code cannot directly implement drag and drop functionality, as it is a client-side interaction. 
// You would need to use JavaScript for this purpose.