更改file_put_contents（）的指针

Question

$iplog = "$time EST - $userip - $location - $currentpage
";
file_put_contents("iplog.txt", $iplog, FILE_APPEND);

I am trying to write this to the text file, but it puts it at the bottom and I would prefer if the new entries were at the top. How would I change the pointer for where it puts the text?

Answer 1

To prepend at the beginning of a file is very uncommon, as it requires all data of the file copied. If the file is large, this might get unacceptable for performance (especially when it is a log file, which is frequently written to). I would re-think If you really want that.

The simplest way to do this with PHP is something like this:

$iplog = "$time EST - $userip - $location - $currentpage
";
file_put_contents("iplog.txt", $iplog . file_get_contents('iplog.txt'));