<?php
$parameters = array(
    "chat_id" => "******",
    "text" => "Hello",
    "disable_web_page_preview" => "true",
    "parse_mode" => "Markdown"
);
send($parameters);
function send($parameters)
{
    $bot_token = "*********";
    $url = "https://api.telegram.org/bot$bot_token/sendMessage";
    if (!$ch = curl_init())
    {
        exit();
    }
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $parameters);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $outpot = curl_exec($ch);
    return $outpot;
}
?>
This is my code but it is not working.
I want to send some messages to the telegram bot.