PHP获取当前页面完整路径URL

//PHP获取当前页面完整路径URL
 1 <?php
function getFullUrl(){
    # 解决通用问题
    $requestUri = '';
    if (isset($_SERVER['REQUEST_URI'])) {
        $requestUri = $_SERVER['REQUEST_URI'];
    } else {
        if (isset($_SERVER['argv'])) {
            $requestUri = $_SERVER['PHP_SELF'] .'?'. $_SERVER['argv'][0];
        } else if(isset($_SERVER['QUERY_STRING'])) {
            $requestUri = $_SERVER['PHP_SELF'] .'?'. $_SERVER['QUERY_STRING'];
        }
    }
//    echo $requestUri.'<br />';
    $scheme = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : "";
    $protocol = strstr(strtolower($_SERVER["SERVER_PROTOCOL"]), "/",true) . $scheme;
       //端口还是蛮重要的，毕竟需要兼容特殊的场景
    $port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]);
    # 获取的完整url
    $_fullUrl = $protocol . "://" . $_SERVER['SERVER_NAME'] . $port . $requestUri;
    return $_fullUrl;
}

echo getFullUrl();