Binternet/misc/tools.php

<?php
function get_root_domain($url) {
    return parse_url($url, PHP_URL_HOST);
}
function request($url) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    return $response;
}
?>