Parsing raw apache logs

Question

I need some php code for parsing raw apache logs. In particular, I want the number of times mode=search and the term used for searching. Here is an example:

207.46.195.228 - - [30/Apr/2010:03:24:26 -0700] "GET /index.php?mode=search&term=AE1008787E0174 HTTP/1.1" 200 13047 "-" "msnbot/2.0b (+http://search.msn.com/msnbot.htm)"
212.81.200.167 - - [30/Apr/2010:04:21:43 -0700] "GET /index.php?mode=search&term=WH2002D-YYH HTTP/1.1" 200 12079 "http://www.mysite.com/SearchGBY.php?page=81" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.4; .NET CLR 1.1.4322; .NET CLR 2.0.50727; WinuE v6; InfoPath.2; WinuE v6)"
212.81.200.167 - - [30/Apr/2010:04:21:44 -0700] "GET /file_uploads/banners/banner.swf HTTP/1.1" 200 50487 "-" "contype"
66.249.68.168 - - [30/Apr/2010:04:21:45 -0700] "GET /index.php?mode=search&term=WH2002D-YYH HTTP/1.1" 200 12079 "-" "Mediapartners-Google"

Answer 1

As easy as using regular expressions: http://php.net/manual/en/book.regex.php