function getContent($url, $data){
    $data = $data[0];
    $params = "";
    foreach ($data as $key => $value) {
        $glue = empty($params) ? '?' : '&';
        $params .=  $glue . $key . '=' . $value;
    }
    print_r( file_get_contents($url . $params) );
}

getContent("http://api.varionity.cz/coins.php", array(["typ" => "one", "nick" => "Whistik", "token" => "27NdNVD9H8"]));