PHP get domain name

Question

I want to get the domain name for where the script is running  How can that be done with PHP  I see that   SERVER  HTTP HOST   as well as   SERVER  SERVER NAME   contain this information  Will that variable always work and should I use one over the other   Thank you

User · Accepted Answer

Similar question has been asked in stackoverflow before.

See here: PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?

Also see this article: http://shiflett.org/blog/2006/mar/server-name-versus-http-host

Recommended using HTTP_HOST, and falling back on SERVER_NAME only if HTTP_HOST was not set. He said that SERVER_NAME could be unreliable on the server for a variety of reasons, including:

no DNS support

misconfigured

behind load balancing software

Source: http://discussion.dreamhost.com/thread-4388.html

User · Answer

To answer your question  these should work as long as    Your HTTP server passes these values along to PHP  I don t know any that don t  You re not accessing the script via command line  CLI    But  if I remember correctly  these values can be faked to an extent  so it s best not to rely on them   My personal preference is to set the domain name as an environment variable in the apache2 virtual host     Virtual host setEnv DOMAIN NAME example com   And read it in PHP      PHP echo getenv DOMAIN NAME     This  however  isn t applicable in all circumstances

[php] PHP get domain name

Examples related to php

Examples related to domain-name