$url = "https://api.content.market.yandex.ru/v1/category.json?geo_id=213";
$headers = array(
"Host: api.content.market.yandex.ru",
"Accept: */*",
"Authorization: <авторизационный_ключ>"
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$data = curl_exec($ch);
curl_close($ch);