Curl php | web base dos attack

Curl php | web base dos attack

<?php

$ch = curl_init("http://www.learnskill.today");
$fp = fopen("learnskilltoday.txt", "w");

curl_setopt($ch, CURLOPT_FILE, $fp);sw
curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);
curl_close($ch);
fclose($fp);
?>