PHP获取网站URL协议- http vs https

我写了一个小函数来建立当前的网站url协议，但我没有SSL，不知道如何测试它是否在https下工作。你能告诉我这对吗?

function siteURL()
{
    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
    $domainName = $_SERVER['HTTP_HOST'].'/';
    return $protocol.$domainName;
}
define( 'SITE_URL', siteURL() );

有必要像上面那样做吗?或者我可以像上面那样做吗?：

function siteURL()
{
    $protocol = 'http://';
    $domainName = $_SERVER['HTTP_HOST'].'/'
    return $protocol.$domainName;
}
define( 'SITE_URL', siteURL() );

在SSL下，即使锚标记url使用http，服务器不自动将url转换为https吗?有必要检查一下协议吗?

谢谢你！

当前回答

$protocal = 'http';
if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' || $_SERVER['HTTPS'] == 'on') {$protocal = 'https';}


echo $protocal;

2016-06-30 17:39:45

其他回答

我是这样做的……这是Rid Iculous的答案的简写版……

$protocol = isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] === 'on' || $_SERVER['HTTPS'] === 1) || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https' ? 'https' : 'http';

2017-11-14 17:54:54

摘自CodeIgniter:

if ( ! function_exists('is_https'))
{
    /**
     * Is HTTPS?
     *
     * Determines if the application is accessed via an encrypted
     * (HTTPS) connection.
     *
     * @return  bool
     */
    function is_https()
    {
        if ( ! empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off')
        {
            return TRUE;
        }
        elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https')
        {
            return TRUE;
        }
        elseif ( ! empty($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off')
        {
            return TRUE;
        }

        return FALSE;
    }
}

2018-07-03 09:40:05

它不是自动的。上面的函数看起来不错。

2010-12-21 19:38:31

对于除IIS之外的任何系统，这就足够定义站点的URL了:

$siteURL='http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['HTTP_HOST'].'/';

$siteURL='http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['SERVER_NAME'].'/';

这取决于你到底想要什么: HTTP_HOST vs. SERVER_NAME

2016-09-15 18:17:37

在代理的情况下，SERVER_PORT可能不会给出正确的值，所以这是为我工作-

$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443 || $_SERVER['HTTP_X_FORWARDED_PORT'] == 443) ? "https://" : "http://"

2016-08-26 07:00:42

PHP获取网站URL协议- http vs https

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