how does php get the hostname of the current domain name?
for example, there is a url: http://m.news.example.com:1000/test/helloworld.php
use $_ SERVER ["SERVER_NAME"]; to get the current domain name (without port number), that is, m.news.example.com .
use $_ SERVER ["HTTP_HOST"]; to get the current domain name (with port number), that is, m.news.example.com:1000 .
question:
I just need the hostname news , how can I get it?
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