IP and HREF Management – PHP – $_SERVER

IP and HREF Management – PHP – $_SERVER

$_SERVER is a PHP super global variable which holds information about headers, paths, and script locations.

Example, install this script in yourwebsite.com/testphp/test.php

<?php 

echo $_SERVER['PHP_SELF']; 
// Output: /testphp/test.php

echo "<br>";

echo $_SERVER['SERVER_NAME']; 
// Output: www.yourwebsite.com

echo "<br>";

echo $_SERVER['HTTP_HOST']; 
// Output: www.yourwebsite.com

echo "<br>";

echo $_SERVER['HTTP_REFERER']; 
// Output: http://www.yourwebsite.com/testphp/test.php

echo "<br>";

echo $_SERVER['HTTP_USER_AGENT']; 
// Output: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0

echo "<br>";

echo $_SERVER['SCRIPT_NAME']; 
// Output: /testphp/test.php

echo "<br>";

echo $_SERVER['SERVER_ADDR']
// Output: 69.195.124.88

?>

List

$_SERVER[‘PHP_SELF’]
Returns the filename of the currently executing script

$_SERVER[‘GATEWAY_INTERFACE’]
Returns the version of the Common Gateway Interface (CGI) the server is using

$_SERVER[‘SERVER_ADDR’]
Returns the IP address of the host server

$_SERVER[‘SERVER_NAME’]
Returns the name of the host server (such as www.lucedigitale.com)

$_SERVER[‘SERVER_SOFTWARE’]
Returns the server identification string (such as Apache/2.2.24)

$_SERVER[‘SERVER_PROTOCOL’]
Returns the name and revision of the information protocol (such as HTTP/1.1)

$_SERVER[‘REQUEST_METHOD’]
Returns the request method used to access the page (such as POST)

$_SERVER[‘REQUEST_TIME’]
Returns the timestamp of the start of the request (such as 1377687496)

$_SERVER[‘QUERY_STRING’]
Returns the query string if the page is accessed via a query string

$_SERVER[‘HTTP_ACCEPT’]
Returns the Accept header from the current request

$_SERVER[‘HTTP_ACCEPT_CHARSET’]
Returns the Accept_Charset header from the current request (such as utf-8,ISO-8859-1)

$_SERVER[‘HTTP_HOST’]
Returns the Host header from the current request

$_SERVER[‘HTTP_REFERER’]
Returns the complete URL of the current page (not reliable because not all user-agents support it)

$_SERVER[‘HTTPS’]
Is the script queried through a secure HTTP protocol

$_SERVER[‘REMOTE_ADDR’]
Returns the IP address from where the user is viewing the current page

$_SERVER[‘REMOTE_HOST’]
Returns the Host name from where the user is viewing the current page

$_SERVER[‘REMOTE_PORT’]
Returns the port being used on the user’s machine to communicate with the web server

$_SERVER[‘SCRIPT_FILENAME’]
Returns the absolute pathname of the currently executing script

$_SERVER[‘SERVER_ADMIN’]
Returns the value given to the SERVER_ADMIN directive in the web server configuration file

$_SERVER[‘SERVER_PORT’]
Returns the port on the server machine being used by the web server for communication (such as 80)

$_SERVER[‘SERVER_SIGNATURE’]
Returns the server version and virtual host name which are added to server-generated pages

$_SERVER[‘PATH_TRANSLATED’]
Returns the file system based path to the current script

$_SERVER[‘SCRIPT_NAME’]
Returns the path of the current script

$_SERVER[‘SCRIPT_URI’]
Returns the URI of the current page