Question

Possible Duplicate:
PHP: Is there a command that can delete the contents of a file without opening it?

How do you empty a .txt file on a server with a php command?

Answer 1

Here’s a way to only emptying if it already exists and that doesn’t have the problem of using file_exists, as the the file may cease to exist between the file_exists call and the fopen call.

$f = @fopen("filename.txt", "r+");
if ($f !== false) {
    ftruncate($f, 0);
    fclose($f);
}