Mod Rewrite Subdomain ด้วย PHP with GET variable (ใช้งานได้จริง)

หน้าแรก SEO Mod Rewrite Subdomain ด้วย PHP with GET variable (ใช้งานได้จริง)

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Question?
I'm trying to wrap my head around mod rewrite, but can't seem to figure this out.

Is there a way I could do the following?

User types in: http://wildcard.mydomain.com

Silently writes to:

http://mydomain.com/index.php?username=wildcard

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Answer
You must capture the first part of the domain in a RewriteCond and then use this in a RewriteRule. The additional RewriteConds are there to prevent www.mydomain.com and index.php being rewritten

Code

RewriteEngine on RewriteCond %{HTTP_HOST} !^www. RewriteCond %{REQUEST_URI} !index.php RewriteCond %{HTTP_HOST} ^(.+?).mydomain.com$ RewriteRule .* /index.php?username=%1 [L]

But this is only a small part of the needed functionality. Additionally, you must setup DNS entries for all of your username.mydomain.com domain names or setup a wildcard DNS entry *.mydomain.com pointing to your host.

Otherwise, the client tries to contact jcraine.mydomain.com, for example, and doesn't find a DNS entry and complains.

If this is a virtual host, you must also add a ServerAlias for each of your usernames

Code

ServerAlias jcraine.mydomain.com

or a wildcard catching all subdomains

Code

ServerAlias *.mydomain.com

refer: http://stackoverflow.com/questions/15330716/mod-rewrite-subdomain-to-php-with-get-variable

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