File/Folder crawler; list all files and folders in a CSV file

crawl.php

<?php 
/** QUICK AND VERY DIRTY */
header('Content-Type: text/plain'); header('Content-Disposition: attachment; filename=crawl.csv'); 
?>
type,path,timestamp,date
<?php
___T(__DIR__);

function ___T($s) {
	$l = array_merge( glob($s .'/.*'), glob($s .'/*') );
	natcasesort($l);
	foreach ($l as $e) {
		$b = basename($e);
		if ($b == '.' || $b === '..' || !trim($b)) {
			continue;
		}
		
		if (is_dir($e)) {
			echo '"d","' . $e . '",' . filemtime($e) . ',"' . date('r', filemtime($e)) .'"' ."\n";
			___T($e);
		}
		else {
			echo '"f","' . $e . '",' . filemtime($e) . ',"' . date('r', filemtime($e)) .'"' ."\n";
		}

	}
}