Want to get all the URL parameter information of the current page how to use PHP to implement?

This article mainly introduces you how to use PHP to get the full URL. First give the novice small white to briefly introduce what is the URL. Baidu Encyclopedia is so explained, the Uniform Resource Locator is the location of the resources available from the Internet and access methods of a concise expression, the Internet is the address of standard resources. Each file on the Internet has a unique URL that contains information that indicates the location of the file and how the browser should handle it. In fact, the simple is the URL. This article is to teach you how to use PHP to get the full URL of the current page and various parameters.

The specific code examples for PHP to get URLs and other parameters are as follows:

First, get the domain name or host address

echo $_server[' Http_host ']. " <br> "; #localhost

Second, get the web address

echo $_server[' php_self ']. " <br> "; #/blog/testurl.php

Third, get the URL parameters

echo $_server["Query_string"]. " <br> "; #id =5

Iv. get the full URL

Echo ' http://' $_server[' http_host '].$_server[' request_uri '];echo '/http '. $_server[' http_host '].$_server[' PHP_ Self ']. '? '. $_server[' query_string '; #http://localhost/blog/testurl.php?id=5

V. Get the full URL that contains the port number

Echo ' http://'. $_server[' server_name ', '. '. $_server["Server_port"].$_server["Request_uri"]; #http://localhost:80/blog/testurl.php?id=5

Six, only get the path

$url = ' http://' $_server[' server_name '].$_server["Request_uri"]; echo dirname ($url); #http://localhost/blog

Note: $_server is an array that contains information such as header information (header), path, and script location (scripts locations). The items in this array are created by the WEB server. There is no guarantee that each server will provide all the items, the server may ignore some, or provide some items that are not listed here.