Hello, I've got a problem. I need add some information at the beginning of file. So, I wrote:

$fp=fopen("file.dat", "a");
flock($fp, LOCK_SH);
rewind($fp);
fwrite($fp, "string");
flock($fp, LOCK_UN);
fclose($fp);

But when I open "file.dat", the "string" is in the end... I don't understand it, please help. Thanks

Note from http://www.php.net/manual/en/function.rewind.php

Note: If you have opened the file in append ("a") mode, any data you write to the file will always be appended, regardless of the file position.

Thank you, I didn't see this note ( But it's a little bit crazy I think...

Your welcome.