PHP 获取当前页面的完整url函数

<?PHP  

/** 

 * 获取当前页面的完整 url 

 * @author ruxing.li 

 * @return string 

 */  

function getPageUrl(){  

    $url = (isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443') ? 'https://' : 'http://';  

    $url .= $_SERVER['HTTP_HOST'];  

    $url .= isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : urlencode($_SERVER['PHP_SELF']) . '?' . urlencode($_SERVER['QUERY_STRING']);  

    return $url;  

}  

echo getPageUrl();