Uz Railway ticket checker

loop-check.php

<?php

$interval = getenv("APP_INTERVAL"); // 2025-12-31
$date = getenv("APP_DATE"); // 2025-12-31
$depStationCode = getenv("APP_FROM"); // 2900000
$arvStationCode = getenv("APP_TO"); // 2900680
$maxCost = getenv("APP_MAX_COST");
$botToken = getenv("APP_BOT_TOKEN");
$chatId = getenv("APP_CHAT_ID");

function makeRequest() {
    $url = 'https://eticket.railway.uz/api/v3/handbook/trains/list';
    $headers = [
        'Accept: application/json',
        'Accept-Encoding: gzip, deflate, br, zstd',
        'Accept-Language: uz',
        'Cache-Control: no-cache',
        'Connection: keep-alive',
        'Content-Type: application/json',
        'Cookie: __stripe_mid=e1f01afa-c761-4b14-bd37-b59c6e3b3fb08ce5d1; G_ENABLED_IDPS=google; XSRF-TOKEN=d0d1aae8-4de1-49c6-965b-5b444c66a6bd; __stripe_sid=ed68b0fe-c1f4-487f-8f5e-4a574b84c6a32580fe',
        'Origin: https://eticket.railway.uz',
        'X-XSRF-TOKEN: d0d1aae8-4de1-49c6-965b-5b444c66a6bd',
    ];

    $data = [
    "directions" => [
        "forward" => [
                "date" => $date,
                "depStationCode" => $depStationCode,
                "arvStationCode" => $arvStationCode
            ]
        ]
    ];

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

    $response = curl_exec($ch);
    if (curl_errno($ch)) {
        echo 'Error: ' . curl_error($ch);
    }
    curl_close($ch);

    return $response;
}


// Run the request every $interval per second
while (true) {
    print_r("Next loop at: " . date("Y-m-d H:i:s") . "\n");
    $response = json_decode(makeRequest(), true);
    foreach ($response['data']['directions']['forward']['trains'] as $train) {
        $text = "RAILWAY\n\n";
        $isExists = false;
        foreach ($train['cars'] as $car) {
            foreach ($car['tariffs'] as $tariff) {
                if ($tariff['tariff'] <= $maxCost) {
                    $isExists = true;
                    $text.= $car['freeSeats'] . " ta joy | ". $train['type']  . ' - '. $train['number'] . ' - ' . $train['departureDate'] . "\n";
                }
            }
        }
        if ($isExists){
            print_r($text);
        }
        file_get_contents("https://api.telegram.org/bot" . $botToken . "/sendMessage?chat_id=" . $chatId . "&text=" . urlencode($txt));
    }
    sleep($interval); // sleep for $interval seconds
}