web-learning-manager/scan.php

<?php
$dir = "Home";

// Run the recursive function 
$response = scan($dir);

// This function scans the files folder recursively, and builds a large array
function scan($dir)
{

	$files = array();

	// Is there actually such a folder/file?
	if (file_exists($dir)) {

		foreach (scandir($dir) as $f) {

			if (!$f || $f[0] == '.') {
				continue; // Ignore hidden files
			}

			if (is_dir($dir . '/' . $f)) {
				// Remove Synology Temp-Folders, if they exists!
				if ($f != '@eaDir') {
					// The path is a folder
					$files[] = array(
						"name" => $f,
						"type" => "folder",
						"path" => $dir . '/' . $f,
						"items" => scan($dir . '/' . $f) // Recursively get the contents of the folder
					);
				}
			} else if (is_file($dir . '/' . $f)) {
				// It is a file
				$files[] = array(
					"name" => $f,
					"type" => "file",
					"path" => $dir . '/' . $f,
					"size" => filesize($dir . '/' . $f) // Gets the size of this file
				);
			}
		}
	}

	return $files;
}

// Output the directory listing as JSON
header('Content-type: application/json');

echo json_encode(array(
	"name" => basename($dir),
	"type" => "folder",
	"path" => $dir,
	"items" => $response
));