Hide the Ads from BOT / Spider

This script is used to display ads on browsers that recognize it. thus, you can hide the ads from BOT / Spider
php code:

<?php function browser_user() { $u_agent = $_SERVER['HTTP_USER_AGENT']; $ub = ''; if(preg_match('/MSIE/i',$u_agent)) { $ub = 'ie'; } elseif(preg_match('/Firefox/i',$u_agent)) { $ub = 'firefox'; } elseif(preg_match('/Safari/i',$u_agent)) { $ub = 'safari'; } elseif(preg_match('/Chrome/i',$u_agent)) { $ub = 'chrome'; } elseif(preg_match('/Flock/i',$u_agent)) { $ub = 'flock'; } elseif(preg_match('/Opera/i',$u_agent)) { $ub = 'opera'; } return $ub; } ?>

The script below is to call the above function

<?php if (browser_user()=='opera'||browser_user()=='ie'||browser_user()=='firefox'||browser_user()=='safari'||browser_user()=='chrome'||browser_user()=='flock') { ?> <i>Enter here the code you want to display ads</i> <?php } ?>

so the script above will only display ads for browsers that recognize it, ..

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