How to get the current host, domain name, URL, path, port, and other parameters using PHP-php Tutorial

This article describes how PHP can obtain parameters such as the current host, domain name, URL, path, and port, if you are interested, please refer to this article. This article describes how PHP can obtain parameters such as the current host, domain name, URL, path, and port.

Lab environment:

The test domain name is daxiangtravel.com, the apache root directory/mnt/, the test directory/mnt/qa/test, and the test file name is index. php.

Get Code:

Get the current directory:

 getcwd();// /mnt/qa/testdirname(__FILE__);// /mnt/qa/test

Get domain name or host address

$_SERVER['HTTP_HOST'];  //daxiangtravel.com

Get webpage address

$_SERVER['PHP_SELF'];// /qa/test/index.php

Obtain URL parameters

$ _ SERVER ["QUERY_STRING"]; // v = 433 get user proxy $ _ SERVER ['http _ referer']; // http://daxiangtravel.com/qa/test/index.php? V = 433

Obtain the complete url

 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; // http://daxiangtravel.com/qa/test/index.php?v=433 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];// http://daxiangtravel.com/qa/test/index.php?v=433

Retrieve path only

$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"];echo dirname($url);// http://daxiangtravel.com/qa/test

Complete url containing the port number

 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];// http://daxiangtravel.com:80/qa/test/index.php?v=433

The preceding section describes how to use PHP to obtain details about the current host, domain name, URL, path, port, and other parameters. For more information, see other related articles in the first PHP community!