yandex.php

<?php

function _curl($Url){
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $Url);
  curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
  curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookie.txt');
  $http_headers = array(
                    'Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
                    'Accept-Encoding:gzip, deflate, sdch',
                    'Accept-Language:ru-RU,ru;q=0.8,en-US;q=0.6,en;q=0.4',
                    'Connection:keep-alive',
                    'Host:yandex.ru',
                    'Upgrade-Insecure-Requests:1',
                    'User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36'
                  );
  curl_setopt($ch, CURLOPT_HTTPHEADER, $http_headers);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $output = curl_exec($ch);
  curl_close($ch);
  return $output;
}

function getCurrentLevel($cidyId){
    $timestamp = file_get_contents('https://api-maps.yandex.ru/services/coverage/1.0/layers.xml?lang=ru_UA&l=trf');
    $timestamp = json_decode($timestamp)->{'data'}->{'trf'}->{'version'};
    return json_decode(file_get_contents('https://jgo.maps.yandex.net/description/traffic-light?lang=ru_RU&ids='.$cidyId.'&tm='.$timestamp))->{'data'}->{'features'}[0]->{'properties'}->{'JamsMetaData'}->{'level'};
}

function getForecast($cityId){
    $csrfToken = _curl('https://yandex.ru/maps/api/traffic/getForecast?csrfToken=&id='.$cityId);
    $csrfToken = json_decode($csrfToken)->{'csrfToken'};
    return _curl('https://yandex.ru/maps/api/traffic/getForecast?csrfToken='.$csrfToken.'&id='.$cityId);
    
}

echo @getCurrentLevel('213'); //возвращает текущий балл пробок
echo "<br>";
print_r(json_decode(getForecast('213'))); //возвращает json с прогнозом пробок. Если прогноза нет, то {"data":null}
// 193  = Воронеж
// 2 - Санкт-Петербург
// 213 - Москва

?>