arama botu tanıma fonksiyonu

isBot($user_agent)

function isBot($user_agent){
$bots = array('bingbot', 'msn', 'abacho', 'abcdatos', 'abcsearch', 'acoon', 'adsarobot', 'aesop', 'ah-ha',
    'alkalinebot', 'almaden', 'altavista', 'antibot', 'anzwerscrawl', 'aol', 'search', 'appie', 'arachnoidea',
    'araneo', 'architext', 'ariadne', 'arianna', 'ask', 'jeeves', 'aspseek', 'asterias', 'astraspider', 'atomz',
    'augurfind', 'backrub', 'baiduspider', 'bannana_bot', 'bbot', 'bdcindexer', 'blindekuh', 'boitho', 'boito',
    'borg-bot', 'bsdseek', 'christcrawler', 'computer_and_automation_research_institute_crawler', 'coolbot',
    'cosmos', 'crawler', 'crawler@fast', 'crawlerboy', 'cruiser', 'cusco', 'cyveillance', 'deepindex', 'denmex',
    'dittospyder', 'docomo', 'dogpile', 'dtsearch', 'elfinbot', 'entire', 'web', 'esismartspider', 'exalead',
    'excite', 'ezresult', 'fast', 'fast-webcrawler', 'fdse', 'felix', 'fido', 'findwhat', 'finnish', 'firefly',
    'firstgov', 'fluffy', 'freecrawl', 'frooglebot', 'galaxy', 'gaisbot', 'geckobot', 'gencrawler', 'geobot',
    'gigabot', 'girafa', 'goclick', 'goliat', 'googlebot', 'griffon', 'gromit', 'grub-client', 'gulliver',
    'gulper', 'henrythemiragorobot', 'hometown', 'hotbot', 'htdig', 'hubater', 'ia_archiver', 'ibm_planetwide',
    'iitrovatore-setaccio', 'incywincy', 'incrawler', 'indy', 'infonavirobot', 'infoseek', 'ingrid', 'inspectorwww',
    'intelliseek', 'internetseer', 'ip3000.com-crawler', 'iron33', 'jcrawler', 'jeeves', 'jubii', 'kanoodle',
    'kapito', 'kit_fireball', 'kit-fireball', 'ko_yappo_robot', 'kototoi', 'lachesis', 'larbin', 'legs',
    'linkwalker', 'lnspiderguy', 'look.com', 'lycos', 'mantraagent', 'markwatch', 'maxbot', 'mercator', 'merzscope',
    'meshexplorer', 'metacrawler', 'mirago', 'mnogosearch', 'moget', 'motor', 'muscatferret', 'nameprotect',
    'nationaldirectory', 'naverrobot', 'nazilla', 'ncsa', 'beta', 'netnose', 'netresearchserver', 'ng/1.0',
    'northerlights', 'npbot', 'nttdirectory_robot', 'nutchorg', 'nzexplorer', 'odp', 'openbot', 'openfind',
    'osis-project', 'overture', 'perlcrawler', 'phpdig', 'pjspide', 'polybot', 'pompos', 'poppi', 'portalb',
    'psbot', 'quepasacreep', 'rabot', 'raven', 'rhcs', 'robi', 'robocrawl', 'robozilla', 'roverbot', 'scooter',
    'scrubby', 'search.ch', 'search.com.ua', 'searchfeed', 'searchspider', 'searchuk', 'seventwentyfour',
    'sidewinder', 'sightquestbot', 'skymob', 'sleek', 'slider_search', 'slurp', 'solbot', 'speedfind', 'speedy',
    'spida', 'spider_monkey', 'spiderku', 'stackrambler', 'steeler', 'suchbot', 'suchknecht.at-robot', 'suntek',
    'szukacz', 'surferf3', 'surfnomore', 'surveybot', 'suzuran', 'synobot', 'tarantula', 'teomaagent', 'teradex',
    't-h-u-n-d-e-r-s-t-o-n-e', 'tigersuche', 'topiclink', 'toutatis', 'tracerlock', 'turnitinbot', 'tutorgig',
    'uaportal', 'uasearch.kiev.ua', 'uksearcher', 'ultraseek', 'unitek', 'vagabondo', 'verygoodsearch', 'vivisimo',
    'voilabot', 'voyager', 'vscooter', 'w3index', 'w3c_validator', 'wapspider', 'wdg_validator', 'webcrawler',
    'webmasterresourcesdirectory', 'webmoose', 'websearchbench', 'webspinne', 'whatuseek', 'whizbanglab', 'winona',
    'wire', 'wotbox', 'wscbot', 'www.webwombat.com.au', 'xenu', 'link', 'sleuth', 'xyro', 'yahoobot', 'yahoo!',
    'slurp', 'yandex', 'yellopet-spider', 'zao/0', 'zealbot', 'zippy', 'zyborg', 'mediapartners-google'
);
$user_agent = strtolower($user_agent);
foreach($bots as $bot){
    if(strpos($user_agent, $bot) === true){
        return true;
    }
}
return false;
}