Go4Expert - Parse Out Bot's By User Agent

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Parse Out Bot's By User Agent

Useful function for logging stats and visitors in php.

PHP Code:


		
			
//returns 1 if the user agent is a bot
function is_bot($user_agent)
{
  //if no user agent is supplied then assume it's a bot
  if($user_agent == "")
    return 1;

  //array of bot strings to check for
  $bot_strings = Array(  "google",     "bot",
            "yahoo",     "spider",
            "archiver",   "curl",
            "python",     "nambu",
            "twitt",     "perl",
            "sphere",     "PEAR",
            "java",     "wordpress",
            "radian",     "crawl",
            "yandex",     "eventbox",
            "monitor",   "mechanize",
            "facebookexternal"
          );
  foreach($bot_strings as $bot)
  {
    if(strpos($user_agent,$bot) !== false)
    { return 1; }
  }
  
  return 0;
}

Re: Parse Out Bot's By User Agent

I insert at the very end of the page after I flush everything out so there will be no delay of content even if the db is bogged down. And if I was give it to someone else who is using iis I would have to recode the entire thing. Also when doing reporting on large sets of data I don’t want to have to parse huge log files for every report.