IndexNow instantly indexes web content in search engines

<?php
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
//-- Options --//
$count = 0;
$dlm = "|~|"; // Pseudo delimiter
$dlmBreack = "\n"; // Delimiter
$dlmCount = "10000"; // Limiting the number of lines read from the file
$txtfile = "url.txt"; // Data file containing a list of URLs
$IndexNowKey = "6352b4ae24df467dbffe0adb9438cd28"; // Key IndoxNew
$uRoor = "example.com"; // Domain
$uHttps = "https"; // http or https
$uEngine = "www.bing.com"; // To whom we transfer data - yandex.com, www.bing.com or api.indexnow.org
//-- Options --//
$uRLS = "".$uHttps."://$uRoor/"; // Final Url with protocol http or https
$txtfile = preg_replace("!^s+!m", "", $txtfile); // Trim spaces at the beginning of the string
$txtfile = preg_replace("![\n\r]+\s*[\n\r]+!", "\r\n", $txtfile); // Remove empty lines
$DoLink = file_get_contents($txtfile);
$Link = explode($dlmBreack, $DoLink, $dlmCount);
 for($in = 0; $in < count($Link); $in++){
$Urls = explode($dlm, $Link[$in]);
$uUrl = $Urls[0]; // String with link
if ($uUrl!=='') { $BLGe[]="$uUrl"; $count++; } // Create an array of links
 }
$data = array('host' => "$uRoor", 'key' => "$IndexNowKey", 'keyLocation' => "".$uRLS."".$IndexNowKey.".txt", 'urlList' =>array_reverse(array_reverse($BLGe)));
$data_string = json_encode($data);
$ch = curl_init("https://$uEngine/indexnow");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json; charset=utf-8'));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data, JSON_UNESCAPED_UNICODE));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HEADER, false);
$res = curl_exec($ch);
$result = curl_exec($ch);
$http_code = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$res = json_encode($res, JSON_UNESCAPED_UNICODE);
 if ($http_code == 200) { echo "<div class=\"alert alert-success text-center\" role=\"alert\">$http_code <b>OK - Prepared and successfully submitted $count URLs</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 elseif ($http_code == 202) { echo "<div class=\"alert alert-primary text-center\" role=\"alert\">$http_code <b>Prepared and sent successfully $count URLs, pending verification of the IndexNow key</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 elseif ($http_code == 400) { echo "<div class=\"alert alert-danger text-center\" role=\"alert\">$http_code <b>Invalid request. Wrong format</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 elseif ($http_code == 403) { echo "<div class=\"alert alert-danger text-center\" role=\"alert\">$http_code <b>Forbidden. Invalid key (e.g. key not found, file found but key not in file)</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 elseif ($http_code == 422) { echo "<div class=\"alert alert-danger text-center\" role=\"alert\">$http_code <b>Unprocessed object. The URLs do not belong to the host or the key does not match the scheme in the protocol</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 elseif ($http_code == 429) { echo "<div class=\"alert alert-danger text-center\" role=\"alert\">$http_code <b>Too many requests. Counted as potential spam</b></div><div class=\"alert alert-secondary text-center\" role=\"alert\">site - <b>$uHost</b>, request - <b>$uEngine</b></div>"; }
 else { echo "<div class=\"alert alert-danger text-center\" role=\"alert\">$http_code -<b> Error sending list of URLs</b></div>"; 
?>