Детектор ботов на PHP
<![CDATA[// детектор ботов
function isBot($ua=null){
if ($ua===null) {
if ($_SERVER['HTTP_CONNECTION'] == 'TE, close'
|| $_SERVER['HTTP_CONNECTION'] == 'close'
|| $_SERVER['HTTP_CONNECTION'] == 'TE'
) return 1;
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
}
if (!$ua) return true;
$list = array('bot', 'spider', 'googlebot', 'yammybot', 'openbot', 'yahoo', 'slurp', 'msnbot',
'ia_archiver', 'lycos', 'scooter', 'altaVista', 'teoma', 'gigabot',
'googlebot-mobile', 'poe-component-client', 'craw', 'mediapartners-google', 'wget','indexer');
foreach ($list as $key => &$value){
if (strpos($ua, $value)!==false) return 1;
}
return 0;
}
]]>