获取url链接 判断加上HTTPS

public function GetCurrentpageURL_get()
{
    $pageURL = 'http';

    if ((! empty($_SERVER['REQUEST_SCHEME']) && $_SERVER['REQUEST_SCHEME'] == 'https') || (! empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (! empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443'))
    {
        $pageURL .= "s";
    }

    $pageURL .= "://";

    if ($_SERVER["SERVER_PORT"] != "80")
    {
        $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
    }
    else
    {
        $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
    }
//    echo $_SERVER["SERVER_NAME"].PHP_EOL;
//    echo $pageURL;die;
    return $pageURL;
}