PHP - Remove 0kb files from folder and put text file with removed file's in.

Remove Zero Bytes

<?php
$fol = "/var/www/zerobytes/test/";

if ($handle = opendir($fol)) {
    while (false !== ($entry = readdir($handle))) {
        if ($entry != "." && $entry != ".." && $entry != "removed.txt" && $entry != is_dir("".$fol."".$entry."")) {
			//Check filesize
			if(filesize("".$fol."".$entry."") < '1000'){
			$myfile = fopen("".$fol."removed.txt", "a") or die("Unable to open file!");
            $txt = "$entry\r\n";
			fwrite($myfile, $txt);
			fclose($myfile);
			echo "".$entry."  - Removed <br>";
			unlink ("".$fol."".$entry."");
			}
        } 
    }
    closedir($handle);
}
echo "If no files are listed above then the files are bigger than 0kb";





?>