- Colection of 65 PHP scripts for $4.29 each
Redirect based on referrer or IP address
Using PHP you can easily redirect your website visitors to a different page depending on where they come from. For example you may have 2 different web sites selling a product but only one customer care web site where people submit support tickets. Depending from which of the 2 web sites a visitor comes to that support site you may want to show them different web page.
PHP stores information about the referring URL in one of its global variables - $_SERVER. You can easily access that value using the $_SERVER['HTTP_REFERER']. Now what you have to do is to see if any of the 2 domains is in that HTTP_REFERER variable. You can do this using he preg_match function.
This is the code that you can use:
Note, that because of using the header() function that code has to be put on the very top of your PHP page. Header redirect will throw an error if there is something sent to visitors browser before calling it.
Instead of using $_SERVER['HTTP_REFERER'] you can use $_SERVER['REMOTE_ADDR'] which carries information about visitors IP address. This way you can redirect users based on their IP address. If you detected that someone is trying to hack your web site you can use that PHP redirect to send him to a 'Thank you page'.
PHP stores information about the referring URL in one of its global variables - $_SERVER. You can easily access that value using the $_SERVER['HTTP_REFERER']. Now what you have to do is to see if any of the 2 domains is in that HTTP_REFERER variable. You can do this using he preg_match function.
This is the code that you can use:
<?php
$referrer = $_SERVER['HTTP_REFERER'];
if (preg_match("/site1.com/",$referrer)) {
header('Location: http://www.customercare.com/page-site1.html');
} elseif (preg_match("/site2.com/",$referrer)) {
header('Location: http://www.customercare.com/page-site2.html');
} else {
header('Location: http://www.customercare.com/home-page.html');
};
?>
Note, that because of using the header() function that code has to be put on the very top of your PHP page. Header redirect will throw an error if there is something sent to visitors browser before calling it.
Instead of using $_SERVER['HTTP_REFERER'] you can use $_SERVER['REMOTE_ADDR'] which carries information about visitors IP address. This way you can redirect users based on their IP address. If you detected that someone is trying to hack your web site you can use that PHP redirect to send him to a 'Thank you page'.
<?php
$visitor = $_SERVER['REMOTE_ADDR'];
if (preg_match("/192.168.0.1/",$visitor)) {
header('Location: http://www.yoursite.com/thank-you.html');
} else {
header('Location: http://www.yoursite.com/home-page.html');
};
?>
35 Comments to "Redirect based on referrer or IP address"
roxy / December 12, 2016 at 02:35 am
Grateful
This code was working properly.
But if I want to, enter several range of IP or several IP, what should I do?
please guide me
lakshmi / November 5, 2011 at 13:55 pm
Hi.....
Actually in my database 9 images are there.I want to display 1st 3(1,2,3 which are in database) bannerimages for 1st refresh of http://xxxx.com/filename.php and for 2nd refresh again 3(4,5,6 which are in database)bannerimages and for 3rd refresh again 3(7,8,9 which are in database)bannerimages .so please tell me total code,how it will come........
More Free Resources
Add great new functionalities to your website with our Free Scripts collection.
Check our extensive collection of top-notch PHP Scripts that will enhance your website!
