Why does the script not work on Kron?

Question

1C-Bitrix

Hello everyone)
Do not judge, I found a lot of such questions, but I did not find the answer.

I made a PHP script in Bitrix that bypasses the infoblock and, when an element appears, adds a post to VK, and then adds the VK_ID property.
If I run through the browser and from anonymous and from the admin, everything works out perfectly. But when I add a hoster to the cron scheduler, it does not work.
in the scheduler I write:

GET ' https://reg-inet.ru/test/vk.php?key_post=7777 '

It returns me a string:

u0462200$ GET ' https://reg-inet.ru/test/vk.php?key_post=7777 ' >/dev/null 2>&1

The php code itself:

<?
require($_SERVER["DOCUMENT_ROOT"]."/bitrix/header.php");


$site_url="https://".$_SERVER['SERVER_NAME'];
$token_public = "7777";

if (isset($_GET['key_post'])) 
{
    if ($_GET['key_post'] == $token_public) 
    {
        $access_token = 'ключ VK';
        $version = '5.122';

        $arFields = "";
        $date = date('Y-m-d');
        $timestamp = MakeTimeStamp($date, 'YYYY-MM-DD');
        $convertDateTime = ConvertTimeStamp($timestamp);
        $arSelect = Array("ID", 
            "NAME", 
            "DATE_ACTIVE_FROM", 
            "DETAIL_PICTURE", 
            "DATE_CREATE", 
            "PROPERTY_VK_ID", 
            "PROPERTY_zp", 
            "PROPERTY_gorod", 
            "PROPERTY_MORE_PHOTO", 
            "PROPERTY_organization", 
            "PROPERTY_adres_raboty",
            "PROPERTY_opyt",
            "PROPERTY_zanyatost",
            "PROPERTY_grafik",
            "PROPERTY_obyazannosti",
            "PROPERTY_trebovaniya",
            "PROPERTY_usloviya",
            "PROPERTY_tel",
            "PROPERTY_kontakt",
            "CANONICAL_PAGE_URL"
        );
        $el = new CIBlockElement;
        $arFilter = Array("IBLOCK_ID"=>16, "PROPERTY_VK_ID" => false, "ACTIVE" => "Y", ">=DATE_ACTIVE_FROM" => $convertDateTime);
        $res = CIBlockElement::GetList(Array(), $arFilter, false, Array("nPageSize"=>100), $arSelect);
        while($ob = $res->GetNextElement())
        {
            $arFields = $ob->GetFields();
            $photoPath = CFile::GetPath($arFields["DETAIL_PICTURE"]);
            $arProps = $ob->GetProperties();
            $link         = $arFields['CANONICAL_PAGE_URL'];

           
            $group_id     = '132737239';

            $photoPath = CFile::GetPath($arFields["DETAIL_PICTURE"]);
            //2. УЗНАЕМ СЕРВЕР ДЛЯ КАРТИНКИ
            $url1 = 'https://api.vk.com/method/photos.getWallUploadServer?group_id='.$group_id.'&access_token='.$access_token.'&v=' . $version;
            $oServer = json_decode(file_get_contents($url1));

            //3. ОТПРАВКА POST КАРТИНКИ НА СЕРВЕР ВКОНТАКТЕ
            $data = array("photo"=>new CurlFile($_SERVER['DOCUMENT_ROOT'].$photoPath));

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
            curl_setopt($ch, CURLOPT_TIMEOUT, 10);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            curl_setopt($ch, CURLOPT_URL, $oServer->response->upload_url);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            $response = curl_exec($ch);
            $response = json_decode($response);
            curl_close($ch);

            //4. СОХРАНЕНИЕ ФОТО ВКОНТАКТЕ
            $url2 = 'https://api.vk.com/method/photos.saveWallPhoto?server='.$response->server.'&group_id='.$group_id.'&photo='.$response->photo.'&hash='.$response->hash.'&access_token='.$access_token.'&v=' . $version;
            $oUrl2 = json_decode(file_get_contents($url2));
            $photoID = $oUrl2->response[0]->id;
            $message = $arFields['NAME']. "\n" . 'Зарплата: '. $arFields['PROPERTY_ZP_VALUE']." руб". "\n" ."Адрес работы: ".$arFields['PROPERTY_ADRES_RABOTY_VALUE']. "\n" ."Опыт работы: ". $arFields['PROPERTY_OPYT_VALUE']. "\n" ."Занятость: ". $arFields['PROPERTY_ZANYATOST_VALUE']. "\n" . "График работы: ". $arFields['PROPERTY_GRAFIK_VALUE']. "\n" ."Подробнее о вакансии смотрите на портале " . $link;



            // Отправляем пост в группу.
            $params = array(
                'v'            => $version,
                'access_token' => $access_token,
                'owner_id'     => '-' . $group_id, 
                'from_group'   => '1', 
                'message'      => $message,
                'attachments'  => 'photo' . $oUrl2->response[0]->owner_id . '_' . $oUrl2->response[0]->id.',' . $link
            );

            $result = file_get_contents('https://api.vk.com/method/wall.post?' . http_build_query($params));
            $result = json_decode($result);
            ?><pre><?print_r($result)?></pre><?
            $VK_ID = $result->response->post_id;
            //Если пост отправлен меняем VK_ID
            if (isset($VK_ID)) {
                
                $PROP = array();
                $PROP['VK_ID'] = $VK_ID;  // свойству с кодом 12 присваиваем значение "Белый"
                
                $ELEMENT_ID = 16;  // код элемента
                $PROPERTY_CODE = "VK_ID";  // код свойства
                $PROPERTY_VALUE = $VK_ID;  // значение свойства

                // Установим новое значение для данного свойства данного элемента
                $resultat = CIBlockElement::SetPropertyValuesEx($arFields['ID'], false, array($PROPERTY_CODE => $PROPERTY_VALUE));
                ?><pre><?print_r($resultat)?></pre><? 
            }

        }
    }
    else
    {
        echo "не верный ключ";
    }
}
else
{
    echo "нет ключа доступа";
}


require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>

Answer 1

In the crown, $_SERVER is empty.