note 88234 added to function.fopen

I'm learning php atm and I'm trying to make a guestbook. I use fopen($gbookentries.dat, "a"). But with this settings the oldest entry is on the top and the newest one is at the bottom. But I want the newest entries on the top, what do I have to replace the "a" by? ---- Server IP: 212.124.37.9 Probable Submitter: 77.181.168.39 ---- Manual Page -- http://www.php.net/manual/en/function.fopen.php Edit -- https://master.php.net/note/edit/88234 Del: integrated -- https://master.php.net/note/delete/88234/integrated Del: useless -- https://master.php.net/note/delete/88234/useless Del: bad code -- https://master.php.net/note/delete/88234/bad+code Del: spam -- https://master.php.net/note/delete/88234/spam Del: non-english -- https://master.php.net/note/delete/88234/non-english Del: in docs -- https://master.php.net/note/delete/88234/in+docs Del: other reasons-- https://master.php.net/note/delete/88234 Reject -- https://master.php.net/note/reject/88234 Search -- https://master.php.net/manage/user-notes.php