Here’s a one line solution: array_shift((explode(‘.’, $_SERVER[‘HTTP_HOST’]))); Or using your example: array_shift((explode(‘.’, ‘en.example.com’))); EDIT: Fixed “only variables should be passed by reference” by adding double parenthesis. EDIT 2: Starting from PHP 5.4 you can simply do: explode(‘.’, ‘en.example.com’)[0];
A sub domain is part of the domain, it’s like subletting a room of an apartment. A records has to be setup on the DNS for the domain e.g mydomain.example has IP 123.456.789.999 and hosted with Godaddy. Now to get the sub domain anothersite.mydomain.example of which the site is actually on another server then login … Read more
The quick rundown You need to create a wildcard domain on your DNS server *.website.example Then in your vhost container you will need to specify the wildcard as well *.website.example – This is done in the ServerAlias DOCs Then extract and verify the subdomain in PHP and display the appropriate data The long version 1. … Read more
This is how I use it across domains… Use an iframe from your parent domain – say parent.example Then on each child.example domain, just do a postMessage to your parent.example iframe All you need to do is setup a protocol of how to interpret your postMessage messages to talk to the parent.example iframe.
There are a ton of good reasons to include it, the best of which is here: Yahoo Performance Best Practices Due to the dot rule with cookies, if you don’t have the ‘www.’ then you can’t set two-dot cookies or cross-subdomain cookies a la *.example.com. There are two pertinent impacts. First it means that any … Read more
You’re looking to create a custom A record. I’m pretty sure that you can use wildcards when specifying A records which would let you do something like this: *.mywebsite.example IN A 127.0.0.1 127.0.0.1 would be the IP address of your webserver. The method of actually adding the record will depend on your host. Then you … Read more
First Go to Settings in Postman: Off the SSL certificate verification in General Tab: Off the Global Proxy Configuration and Use System Proxy in Proxy Tab: Make Request Timeout to 0 (Zero) Configure Apache: If the above changes resulted in a 404 response, then continue reading 😉 Users that host their site locally (like with … Read more
Most answers given here are false. It is perfectly legal to have an underscore in a domain name. Let me quote the standard, RFC 2181, section 11, “Name syntax”: The DNS itself places only one restriction on the particular labels that can be used to identify resource records. That one restriction relates to the length … Read more
The hint (using axfr) only works if the NS you’re querying (ns1.foo.example in your example) is configured to allow AXFR requests from the IP you’re using; this is unlikely, unless your IP is configured as a secondary for the domain in question. Basically, there’s no easy way to do it if you’re not allowed to … Read more
If you set a cookie like this: Set-Cookie: name=value then the cookie will only apply to the request domain, and will only be sent for requests to the exact same domain, not any other subdomains. (See What is a host only cookie?) Two different domains (e.g. example.com and subdomain.example.com, or sub1.example.com and sub2.example.com) can only … Read more