function CevrimiciBotlar($metin)
{
	$bul = array('66.249.65.112',
	'72.14.199.12',
	'74.6.17.159',
	'65.55.212.234',
	'209.234.171.43');

	$cevir = array('Googlebot/2.1, ',
	'Feedfetcher-Google, ',
	'Yahoo! Slurp, ',
	'MSN Bot, ',
	'Alexa-archive.org, ');

	$donen = str_replace($bul, $cevir, $metin);

	if (preg_match('/^[0-9]/', $donen)) $donen = '';

	return $donen;
}

function CevrimiciBotlar($metin)
{
    $bot_bul = array('+http://www.google.com/bot.html',
    '+http://www.google.com/feedfetcher.html',
    'http://help.yahoo.com/help/us/ysearch/slurp',
    'http://publisher.yahoo.com/rssguide',
    '+http://search.msn.com/msnbot.htm',
    'ia_archiver',
    'http://www.gigablast.com/spider.html',
    'Mozilla/5.0 (compatible; YandexBot/3.0');

    $bot_cevir = array('Googlebot, ',
    'Feedfetcher-Google, ',
    'Yahoo! Slurp, ',
    'YahooFeedSeeker, ',
    'MSN Bot, ',
    'Alexa-archive.org, ',
    'Gigabot, ',
    'Yandex Bot, ');