请求URL地址

if (!function_exists('curl_url')) {

    /**
     * 获取当前访问的完整URL
     * @return string 返回结果
     */
    function curl_url()
    {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] === 'on') {
            $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"];
        }
        return $pageURL;
    }
}