.htaccess Redirect all Subdomains to an URL

Question

how can I redirect all of the subdomains to a URL this is the scenario :

abc.xxx.com goes to abc.xxx.com/index.php?id=abc www.xxx.com/abc or xxx.com/abc also goes to the same URL: abc.xxx.com/index.php?id=abc

and please bear in mind there is no /abc folder on the website

and the file index.php is the root file of the main domain

I want to keep the abc in the subdomain for SEO purpose.

Thanks in advance.

Answer 1

我认为您必须首先检查URL是否不包含“ index.php？id =”以防止无限循环。

RewriteCond %{REQUEST_URI} !index\.php\?id= [NC]