PHP 获取站点 URL 协议 - http 与 https
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PHP Get Site URL Protocol - http vs https
提问by
I've written a little function to establish the current site url protocol but I don't have SSL and don't know how to test if it works under https. Can you tell me if this is correct?
我写了一个小函数来建立当前站点的 url 协议，但我没有 SSL，也不知道如何测试它是否在 https 下工作。你能告诉我这是否正确吗？
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() );
Is it necessary to do it like above or can I just do it like?:
是否有必要像上面那样做，或者我可以像这样做吗？：
function siteURL()
{
$protocol = 'http://';
$domainName = $_SERVER['HTTP_HOST'].'/'
return $protocol.$domainName;
}
define( 'SITE_URL', siteURL() );
Under SSL, doesn't the server automatically convert the url to https even if the anchor tag url is using http? Is it necessary to check for the protocol?
在 SSL 下，即使锚标记 url 使用的是 http，服务器是否也不会自动将 url 转换为 https？是否有必要检查协议？
Thank you!
谢谢！
采纳答案by profitphp
It is not automatic. Your top function looks ok.
它不是自动的。您的顶级功能看起来不错。
回答by Ivo
I know it's late, although there is a much more convenient way to solve this kind of problem! The other solutions are quite messy; this is how I would do it:
我知道已经晚了，尽管有更方便的方法来解决此类问题！其他解决方案相当混乱；这就是我将如何做到的：
$protocol = stripos($_SERVER['SERVER_PROTOCOL'],'https') === 0 ? 'https://' : 'http://';
...or even without condition if you prefer:
...或者甚至没有条件，如果您愿意：
$protocol = strtolower(substr($_SERVER["SERVER_PROTOCOL"],0,strpos( $_SERVER["SERVER_PROTOCOL"],'/'))).'://';
Have a look at $_SERVER["SERVER_PROTOCOL"]
回答by Rid Iculous
This works for me
这对我有用
if (isset($_SERVER['HTTPS']) &&
($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1) ||
isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
$_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
$protocol = 'https://';
}
else {
$protocol = 'http://';
}
回答by Anoop K
Some changes:
一些变化：
function siteURL() {
$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') ||
$_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
$domainName = $_SERVER['HTTP_HOST'];
return $protocol.$domainName;
}
回答by softcod.com
short way
捷径
$scheme = $_SERVER['REQUEST_SCHEME'] . '://';
回答by alex
Because testing port number is not a good practice according to me, my solution is:
因为在我看来测试端口号不是一个好习惯，我的解决方案是：
define('HTTPS', isset($_SERVER['HTTPS']) && filter_var($_SERVER['HTTPS'], FILTER_VALIDATE_BOOLEAN));
The HTTPSconstant returns TRUEif $_SERVER['HTTPS']is set and equals to "1", "true", "on" or "yes".
Returns FALSE otherwise.
该HTTPS报酬不变TRUE，如果$_SERVER['HTTPS']设置和“on”或“是”等于“1”，“真实的”。否则返回 FALSE。
回答by Eugene Zakharenko
For any system except IIS this is quite enough to define site self URL:
对于除 IIS 之外的任何系统，这足以定义站点自 URL：
$siteURL='http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['HTTP_HOST'].'/';
or
或者
$siteURL='http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['SERVER_NAME'].'/';
depends on what you exactly want: HTTP_HOST vs. SERVER_NAME
取决于你到底想要什么： HTTP_HOST 与 SERVER_NAME
回答by Harshit
In case of proxy the SERVER_PORTmay not give the correct value so this is what worked for me -
在代理的情况下，SERVER_PORT可能不会给出正确的值，所以这对我有用 -
$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443 || $_SERVER['HTTP_X_FORWARDED_PORT'] == 443) ? "https://" : "http://"
回答by shashik493
Use this server variable to get the protocol details:
使用此服务器变量获取协议详细信息：
$scheme = $_SERVER['REQUEST_SCHEME'] . '://';
echo $scheme; //it gives http:// or https://
Note that this server variable is unreliable. For more information take a look at: Is $_SERVER['REQUEST_SCHEME'] reliable?
请注意，此服务器变量不可靠。有关更多信息，请查看： $_SERVER['REQUEST_SCHEME'] 可靠吗？
回答by Rob Stocki
I know this is an old question but I came across this today since I needed to test for this in my site. It seems the answers above are needlessly complicated. To establish the site protocol, all you have to do is test $_SERVER['HTTPS']
我知道这是一个老问题，但我今天遇到了这个问题，因为我需要在我的网站中对此进行测试。似乎上面的答案是不必要的复杂。要建立站点协议，您所要做的就是测试$_SERVER['HTTPS']
If the protocol is using HTTPS, then $_SERVER['HTTPS']will return 'on'. If not, the variable will remain empty.
For example:
// test if HTTPS is being used. If it is, the echo will return '$SSL_test: on'. If not HTTPS, '$SSL_test' will remain empty.
如果协议使用 HTTPS，$_SERVER['HTTPS']则将返回“on”。如果不是，变量将保持为空。例如：
// test if HTTPS is being used. If it is, the echo will return '$SSL_test: on'. If not HTTPS, '$SSL_test' will remain empty.
$SSL_test = $_SERVER['HTTPS'];
echo '<p>$SSL_test: '.$SSL_test.'</p>';
if($SSL_test == true) {
echo 'You\'re using SSL';
} else {
echo 'You\'re not using SSL';
}
$SSL_test = $_SERVER['HTTPS'];
echo '<p>$SSL_test: '.$SSL_test.'</p>';
if($SSL_test == true) {
echo 'You\'re using SSL';
} else {
echo 'You\'re not using SSL';
}
You can use the above to easily and cleanly test for HTTPS and implement accordingly. :)
您可以使用上述内容轻松干净地测试 HTTPS 并相应地实施。:)
