List all folder in pHP

PHP
$path    = './';
$files = scandir($path);
$files = array_diff(scandir($path), array('.', '..'));
foreach($files as $file){
  echo "<a href='$file'>$file</a>";
}scandir ( string $directory [, int $sorting_order = SCANDIR_SORT_ASCENDING [, resource $context ]] ) : array$dir = '.';
$directories = glob($dir . '/*', GLOB_ONLYDIR);
Source

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