php copy file is size is zero

hello there,
I have a text file named cookie.txt and a new one like newCookie.txt..
I would like to make a little function to check if the size of newCookie.txt is zero then copy the data from cookie.txt into it..
how can I do that?
LVL 1
XK8ERAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

hernst42Commented:
See the php functions http://www.php.net/filesize and http://www.php.net/copy The code for that should be easy to write
SysTurnCommented:
See attached code snippet
$newFileName = 'newCookie.txt';
$oldFileName = 'cookie.txt';
if(!is_file($newFileName) || !filesize($newFileName))
{
    $fp = @fopen($newFileName, 'w');
    if($fp){
        fwrite($fp, file_get_contents($oldFileName));
        fclose($fp);
    } else {
        echo 'Cannot open file for writing!';
    }
}

Open in new window

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
PHP

From novice to tech pro — start learning today.