Posted By

tomdebruin on 06/16/08

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Last Edited at 06/16/08 11:39am

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Intelligent Back Button.

/ Published in: PHP

A back button that detects if the visitor came from your site initially. If they came from another URL it sends them to your index page instead.

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Copy this code and paste it in your HTML

<?php $mysite = "http://www.theUrlOfYourSite.com"; ?>
<a href="<?php $url = parse_url($_SERVER['HTTP_REFERER']); /* detect referrer */ 
if ($url['host'] == $_SERVER['HTTP_HOST']) { /* if domain matches, go back */
echo $_SERVER['HTTP_REFERER']; } else { echo $mysite; } ?>"><!-- if from another domain, send them to my index page -->Back a page</a>

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