piwik_hosts_alias = [ "hostname1.com", "hostname2.com", ... ];
For some site configurations we need to support wildcards so you can specify hostname like:
This feature is a must have for our community sites.
Each of our members have their own url (eg. kofl.devcon5.cc), so without wildcard support piwik would not be useable for us.
We hope the feature will be implemnted soon.
In my patch (which doesn't use regular expressions), wildcards are specified in a separate variable.
piwik_hostsalias = [ "example.com" ]; /* matches only example.com /
piwik_wildcard_hostsalias = [ ".example.com" ]; / matches .example.com but not example.com /
Anthon, thanks for your patch. we would like to minimize complexity and no of variables involved. I suggest that we don't use regular expressions, but that the user can specify the domains in the same array piwik_hosts_alias with the notation *.domain.com
In the JS, you could look for the character * using substring and apply the same algorithm found in your patch.
Could you please add a test case?
thanks for patch vipsoft; see 
Consider a host an alias host and not record the links to this domain as outlinks
piwik_url = http://yourwebsite/piwik/piwik.php;
piwik_hosts_alias = "hostname2.com"; // the current tracked website is added to this array anyway
piwik_log(piwik_action_name, piwik_idsite, piwik_url);
Wiki docs update looks good.