Problem: Writing into Files?

Hi there, I've written a counter for my blog, which keeps the count of visitors in a file. However, when the visitors get too many, it resets to zero. Why? Here's the piece of code: [code] $f = $dir . '/view_counter' .EXT; $fp = fopen($f, "r"); $count =fgets($fp, 1024); fclose($fp); $fw = fopen($f, "w"); $cnew = $count + 1; $countnew = fputs($fw, $count + 1); return $cnew; [/code] I'm thinking this is caused by two visitors visiting the page at the same time; but is there a way to fix it, perhaps the reading/writing parameter? Thanks! -- --- Contact info: Skype: parham-d MSN: fire_lizard16 at hotmail dot com email: parham90 at GMail dot com