File Directory Php

$fh = fopen('novel.txt','r') or die($php_errormsg);
while (! feof($fh)) {
    if ($s = fgets($fh)) {
        $words = preg_split('/\s+/',$s,-1,PREG_SPLIT_NO_EMPTY);
    }
}
fclose($fh) or die($php_errormsg);
?>