PHP，JS＆amp; AJAX文件浏览器不显示子文件夹

Question

因此，对于我的实习，我必须创建一个文件浏览器来查看远程服务器中的文件。我的问题是它没有显示子文件夹！但它确实显示了父文件夹。例如：它确实显示文件夹＆＃34; Demo＆＃34;但不是＆＃34; Demo＆＃34;中的子文件夹。就个人而言，我认为这是一个JS问题。这只发生在我使用远程服务器路径时。当文件夹位于服务器本地时，我的代码工作得很好。所以我的问题是：谁能看到我做错了什么？我无法找到问题：（

PHP：`

writeImageToBMP

JS： `

<?php

$dir = '\\\\zwosvr007\\SF Centraal\\Unica Online - Klant Portaal\\';
//$dir = 'handleidingen';
// $dir = 'handleidingen';


// 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?


        foreach (glob($dir . "*", GLOB_BRACE) as $f) {
            if (is_readable($f)) {
                if (!$f || $f[0] == '.') {
                    continue; // Ignore hidden files
                }


                if (is_dir($f)) {


                    // The path is a folder

                    $files[] = array(
                        "name" => str_replace($dir, "", $f),
                        "type" => "folder",
                        "path" => $f,
                        "items" =>  scansub($f) // Recursively get the contents of the folder
                    );
                } else {

                    // It is a file

                    $files[] = array(
                        "name" => str_replace($dir, "", $f),
                        "type" => "file",
                        "path" => $f,
                        //"size" => filesize($dir . '/' . $f) // Gets the size of this file
                        "size" => filesize($f) // Gets the size of this file
                    );
                }
            }
            else{
//                  echo fileperms("\\\\zwoapp029\\DOSSIER\\");
//                  echo "<br>";
            }

        }





    return $files;
}

function scansub($f){


    $files = array();



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


                    if (is_dir($f . '\\' . $g)) {

                        // The path is a folder

                        $files[] = array(
                            "name" => $g,
                            "type" => "folder",
                            "path" => $f . '\\' . $g,
                            "items" => scansub($f . '\\' . $g) // Recursively get the contents of the folder
                        );
                    } else {

                        // It is a file

                        $files[] = array(
                            "name" => $g,
                            "type" => "file",
                            "path" => $f . '\\' . $g,
                            "size" => filesize($f. '\\' . $g) // Gets the size of this file
                            //"size" => filesize($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" => $dir,
    "type" => "folder",
    "path" => $dir,
    "items" => $response
));