strpos($_SERVER['HTTP_USER_AGENT'], 'Nutch-1.0') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'Tagoobot/3.0') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'SapphireWebCrawler/1.0') !== false ||
+ strpos($_SERVER['HTTP_USER_AGENT'], 'BotOnParade') !== false ||
+ strpos($_SERVER['HTTP_USER_AGENT'], 'SurveyBot/2.3') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'Cityreview Robot') !== false) {
if (isset($_SESSION['uid']))
$_SESSION['robot'] = true;