Guide Adcash zones

<?php
$headers = array();
$headers[] = 'Accept: application/json,  text/plain, */*';
$headers[] = 'Content-Type: application/json;charset=UTF-8';

$results =  "1"; // 3 * 100

require 'vendor/autoload.php';
use  GuzzleHttp\Client;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Pool;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\Psr7\Response;

$client =  new Client([
]);
$search = '';
function strContainsSubstr($haystack, $needle)  {
    return strpos($haystack,  $needle) !== false;
}

for ($i = 0;  $i < $results; $i++) {

     $response = $client->request('GET', 'https://urlscan.io/api/v1/search/?q=filename:youradexchange.com\/script\/'  . $search, ['headers' => $headers,'http_errors' =>  false]);
    $scan =  json_decode($response->getBody());
    $search =  "&search_after=" . implode(",", $scan->results[array_key_last($scan->results)]->sort);

     foreach ($scan->results as $key) {
          sleep(15);
         $url = $key->result;
          $response2 = $client->request('GET', "$url", ['headers'  => $headers,'http_errors' => false]);
         $response2  = json_decode($response2->getBody());
         foreach ($response2->lists->urls as  $key2) {
               if (
                   strContainsSubstr($key2, 'https://youradexchange.com/script/') ) {
                   parse_str(parse_url($key2, PHP_URL_QUERY), $params);
                   $path = parse_url($key2, PHP_URL_PATH);
                   $path = str_replace('/',  '', $path);
                  $path  = str_replace('.php', '', $path);
                   $path = str_replace('script', '', $path);
                   $path = str_replace('suurl5',  'onclick', $path);
                  if  ($path != 'i') {
                   $final_result = $key->task->apexDomain . ';'  . $path . ';' . $params['r']  . "\n";
                  file_put_contents('adcash_zones.csv',  $final_result, FILE_APPEND | LOCK_EX);
                   }
              }
         }
     }
    }