curl -X POST "https://isms.uz/gateway/services/send.php" \
  -d "listID=5" \
  -d "message=Yangi aksiya! -30% barcha mahsulotlarga!" \
  -d "key=YOUR_API_KEY" \
  -d "option=1"

curl -X POST "https://isms.uz/gateway/services/send.php" \
  -d "id=1234" \
  -d "key=YOUR_API_KEY"

# SMS holatlari:
# Pending   — navbatda kutmoqda
# Sent      — qurilmadan yuborildi
# Delivered — qabul qilindi (tasdiqlanmagan)
# Failed    — yuborishda xato

curl -X POST "https://isms.uz/gateway/services/send.php" \
  -d "key=YOUR_API_KEY"

# Javob:
{
  "success": true,
  "devices": [
    { "id": 1, "name": "Samsung A54", "battery": 87, "signal": 4, "active": true },
    { "id": 2, "name": "Redmi Note 12", "battery": 63, "signal": 5, "active": true }
  ]
}

<?php
define("API_KEY", "YOUR_API_KEY");  // ← API kalitingiz

try {
    if (isset($_SERVER["HTTP_X_SG_SIGNATURE"])) {

        // ── Kiruvchi SMS ──
        if (isset($_POST["messages"])) {
            $hash = base64_encode(hash_hmac(
                'sha256',
                $_POST["messages"],
                API_KEY,
                true
            ));

            if ($hash === $_SERVER["HTTP_X_SG_SIGNATURE"]) {
                $messages = json_decode($_POST["messages"], true);

                foreach ($messages as $msg) {
                    /**
                     * $msg['ID']            — SMS ID
                     * $msg['number']        — Yuboruvchi raqam
                     * $msg['message']       — Xabar matni
                     * $msg['deviceID']      — Qurilma ID
                     * $msg['simSlot']       — SIM slot (0 yoki 1)
                     * $msg['status']        — Holat
                     * $msg['sentDate']      — Yuborilgan vaqt
                     * $msg['deliveredDate'] — Yetkazilgan vaqt
                     */

                    // Misol: OTP javobini qayta ishlash
                    if (strtolower($msg["message"]) === "hi") {
                        // Javob yuborish yoki boshqa amal bajarish
                    }
                }
            } else {
                throw new Exception("Signature mos kelmadi!");
            }
        }

        // ── USSD so'rovi ──
        if (isset($_POST["ussdRequest"])) {
            $ussd = json_decode($_POST["ussdRequest"]);
            $deviceID = $ussd->deviceID;
            $request  = $ussd->request;
            $response = $ussd->response;
            // USSD javobini qayta ishlash
        }

    } else {
        http_response_code(400);
        error_log("Signature topilmadi!");
    }
} catch (Exception $e) {
    http_response_code(401);
    error_log($e->getMessage());
}

<?php
define("SERVER",        "https://isms.uz/gateway");
define("API_KEY",       "YOUR_API_KEY");  // ← o'zgartiring
define("USE_SPECIFIED", 0);
define("USE_ALL_DEVICES",1);
define("USE_ALL_SIMS",  2);

/**
 * Bitta SMS yuborish
 * @param string $number     — Telefon raqam (+998...)
 * @param string $message    — SMS matni
 * @param int    $device     — Qurilma ID (0 = default)
 * @param int    $schedule   — Unix timestamp (null = hozir)
 * @param bool   $isMMS      — MMS yuborish?
 * @param string $attachments— MMS uchun rasm URL lari
 * @param bool   $prioritize — Ustuvor yuborish?
 */
function sendSingleMessage($number, $message, $device=0,
    $schedule=null, $isMMS=false, $attachments=null, $prioritize=false)
{
    $url = SERVER . "/services/send.php";
    $data = [
        'number'      => $number,
        'message'     => $message,
        'key'         => API_KEY,
        'devices'     => $device,
        'schedule'    => $schedule,
        'type'        => $isMMS ? "mms" : "sms",
        'attachments' => $attachments,
        'prioritize'  => $prioritize ? 1 : 0
    ];
    return sendRequest($url, $data)["messages"][0];
}

/**
 * Ommaviy SMS yuborish
 * @param array $messages        — [["number"=>"+998...", "message"=>"..."], ...]
 * @param int   $option          — USE_SPECIFIED | USE_ALL_DEVICES | USE_ALL_SIMS
 * @param array $devices         — Qurilmalar ID ro'yxati
 * @param int   $schedule        — Unix timestamp
 * @param bool  $useRandomDevice — Tasodifiy qurilma
 */
function sendMessages($messages, $option=USE_SPECIFIED,
    $devices=[], $schedule=null, $useRandomDevice=false)
{
    $url = SERVER . "/services/send.php";
    $data = [
        'messages'        => json_encode($messages),
        'key'             => API_KEY,
        'devices'         => json_encode($devices),
        'option'          => $option,
        'schedule'        => $schedule,
        'useRandomDevice' => $useRandomDevice
    ];
    return sendRequest($url, $data)["messages"];
}

// ── HTTP helper ──
function sendRequest($url, $data) {
    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL            => $url,
        CURLOPT_POST           => true,
        CURLOPT_POSTFIELDS     => http_build_query($data),
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_TIMEOUT        => 30
    ]);
    $response = curl_exec($ch);
    if (curl_errno($ch)) throw new Exception(curl_error($ch));
    curl_close($ch);
    return json_decode($response, true);
}