function sms_send() {
    $url = "http://bulksmsbd.net/api/smsapi?api_key=spz6JXwoCEfWPzcWBSZ9&type=text&number=Receiver&senderid=Random&message=TestSMS";
    $api_key = "spz6JXwoCEfWPzcWBSZ9";
    $senderid = "Random";
    $number = "8801234567890";
    $message = "[otp] is your OTP to confirm your phone no at BeeeBazar.com . Thanks for shopping. Stay with us.";
 
    $data = [
        "api_key" => $api_key,
        "senderid" => $senderid,
        "number" => $number,
        "message" => $message
    ];
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $response = curl_exec($ch);
    curl_close($ch);
    return $response;
}