Regex
Detect subdomain and rewrite the front part of the subdomain:
.htaccess
[sourcecode]
RewriteCond %{HTTP_HOST} ^auto(.*)domain.com
>RewriteRule ^(.*)$ http://quotes%1domain.com/$1 [R=301,L]
RewriteCond %{HTTP_HOST} ^auto(.*)domain.comRewriteRule ^(.*)$ http://quotes%1domain.com/$1 [R=301,L]
[/sourcecode]
Search and replace the domain only:
[sourcecode]
/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#?=~_|!:,.;]*[-A-Z0-9+&@#%=~_|]\/)/i
[/sourcecode]