Php Code to Get Current Webpage URL

By | 15/06/2012

PHP having the super global variables $_SERVER to get currently using page URL

URL http://www.tobbynews.com/page/2.php

$_SERVER[‘PHP_SELF’]
PHP_SELF will return the currently working webpage with their directory path ( /page/2.php )

$_SERVER[‘SCRIPT_NAME’]
SCRIPT_NAME is introduced in CGI, and it also returns the currently working webpage ( /page/2.php )

$_SERVER[‘HTTP_HOST’]
HTTP_HOST is a client controlled value and returns domain name (http://www.tobbynews.com)

$_SERVER[‘SERVER_NAME’]
SERVER_NAME is server controlled value (http://www.tobbynews.com)

$_SERVER[‘REQUEST_URI’]
REQUEST_URI will return currently working webpage with directory path and also query string ( /page/2.php

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Difference Between $_SERVER[‘PHP_SELF’], $_SERVER[‘SCRIPT_NAME’] and $_SERVER[‘REQUEST_URI’]

$_SERVER[‘PHP_SELF’], $_SERVER[‘SCRIPT_NAME’] & $_SERVER[‘REQUEST_URI’] – All this super global variable will return the same output i.e., /page/2.php

$_SERVER[‘REQUEST_URI’] is unique from all this, because this will get query string from the webpage but other two wont give query string.

Example: URL: http://www.tobbynews.com/page/2.php?name=tobby

Select Code
1
</p> <p><?php</p> <p>echo "PHP_SELF - ".$_SERVER['PHP_SELF'];</p> <p>echo "SCRIPT_NAME - ".$_SERVER['SCRIPT_NAME'];</p> <p>echo "REQUEST_URI - ".$_SERVER['REQUEST_URI'];</p> <p>?></p> <p>

Output:

PHP_SELF – /page/2.php

SCRIPT_NAME – /page/2.php

REQUEST_URI – /page/2.php?name=tobby

 

Here is the various methods of php code to get website name and currently using webpage.

Select Code
1
</p> <p><?php<br /> $domain=$_SERVER['SERVER_NAME']; // Returns http://www.tobbynews.com<br /> $domain1=$_SERVER['HTTP_HOST']; // Returns http://www.tobbynews.com<br /> $url=$SERVER['PHP_SELF']; // Returns /page/2.php<br /> $url1=$SERVER['SCRIPT_NAME']; //Returns /page/2.php<br /> $url2=$SERVER['REQUEST_URI']; //Returns /page/2.php<br /> echo $domain.$url1;<br /> ?></p> <p>

OUTPUT:

http://www.tobbynews.com/page/2.php

 

Use of Getting Current Webpage URL

1. Making forward and back button or link in webpage

2. To submit data in a webpage through FORM input element to the same page ( i.e., sending data from form by GET or POST method to the same page )

Select Code
1
</p> <p><form method="post" action="<?php $_SERVER['PHP_SELF'] ?>"><br /> ....<br /> HTML Input goes here<br /> ...<br /> </form></p> <p>

 

 

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