如何让PHP为每个用户自动创建子域?
如何创建类似于 http://user.mywebsite.com 的子域?我必须以某种方式访问htaccess吗?是否真的可以通过纯PHP代码简单地创建它，或者我需要使用一些外部脚本服务器端语言?
How do I create subdomain like http://user.mywebsite.com ? Do i have to access htaccess somehow? Is it actually simply possible to create it via pure php code or I need to use some external script-server side language?
对那些回答的人:那么，我是否应该问我的托管服务商他们是否提供某种类型的DNS访问?
To those who answered: Well, then, should i ask my hosting if they provide some sort of DNS access??
您要创建自定义的 A记录.
我很确定指定A记录时可以使用通配符，这样您就可以执行以下操作:
I'm pretty sure that you can use wildcards when specifying A records which would let you do something like this:
*.mywebsite.com IN A 127.0.0.1
127.0.0.1将是您的Web服务器的IP地址.实际添加记录的方法取决于您的主机.
像 http://mywebsite.com/user 这样操作，如果可以的话，设置起来会容易得多.一个选择.
Doing it like http://mywebsite.com/user would be a lot easier to set up if it's an option.
然后，您可以添加一个如下所示的.htaccess文件:
Then you could just add a .htaccess file that looks like this:
Options +FollowSymLinks
RewriteEngine On
RewriteRule ^([aA-zZ])$ dostuff.php?username=$1
在上面，用户名仅限于字符a-z
获取子域的重写规则如下:
The rewrite rule for grabbing the subdomain would look like this:
RewriteCond %{HTTP_HOST} ^(^.*)\.mywebsite.com
RewriteRule (.*) dostuff.php?username=%1