function scan_local_files($local_root)
{
$local_files = scanLocal($local_root);
//Scan local files.
if (empty($local_files)) {
$html = "No local files found!<br/>";
} else {
$_SESSION['local_files'] = $local_files;
// save for later
$html = count($local_files) . " local files found!<br/>";
}
return $html;
}
function scanLocal($dir, $rootLength = null)
{
$dir = clearPath($dir);
if (is_null($rootLength)) {
$rootLength = strlen($dir);
}
// check whether $root is a valid directory
if (!is_dir($dir)) {
echo "{$dir} is not a valid directory\n";
die;
}
//scan dir, create file modification time view
$files = array();
$curDirList = scandir($dir);
foreach ($curDirList as $n) {
if ($n[0] == '.') {
continue;
}
// jump the hidden directory and file
$n = $dir . $n;
$fileName = substr($n, $rootLength);
$files[$fileName] = filemtime($n);
if (is_dir($n)) {
$files = array_merge($files, scanLocal($n, $rootLength));
}
}
return $files;
}