PHP gets the current URL domain name_PHP tutorial

//Get the current domain name: 

echo SERVER['SERVER_NAME'];//Get the source URL, that is, click to go to the previous page URL of this page 

echo SERVER["HTTP_REFERER"]; 

SERVER['REQUEST_URI'];//Get the suffix of the current domain name 

SERVER['HTTP_HOST'];//Get the current domain name 

dirname(__FILE__);//Get the physical path of the current file 

dirname(__FILE__)."/../";//Get the upper-level physical path of the current file 

?> 



Excerpted from Hurry’s column 



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