scanningdirectory.php

<?php
$genpath  = "../fileshere/";
$category = "Folder Test 1";
$folder   = scandir($genpath . $category);
$files    = array_diff($folder, array(
    '.',
    '..',
    '.metadata'
));

$a = "<ul>";

foreach ($files as $file) {
    $a .= "<li>" . $file . "</li>";
    
    if ($file === '.' or $file === '..') {
        continue;
    } else {
        $a .= "<ul>";
        $xfolder = scandir($genpath . $category . '/' . $file);
        $xfiles  = array_diff($xfolder, array(
            '.',
            '..',
            '.metadata'
        ));
        foreach ($xfiles as $key) {
            
            if ($key === '.' or $key === '..') {
                continue;
            } else {
                $a .= "<li>" . $key . "</li>";
            }
        }
        $a .= "</ul>";
    }
}
$a .= "</ul>";
echo $a;
?>