I am using elfinder as file manager in my project to upload and download files. I want to validate the total number of files are uploaded and number inputted by a user. But I don't have any clue how to do it. Here is my code to initialize elfinder:

 var elFinderInstance = $('#elfinder').elfinder({
            url : 'el/php/connector.minimal.php',
            ui : [],

        }).elfinder('instance');