Creating a temporary file
//Create temporary file destination
if (!is_dir('temp/')) {
mkdir('temp', 0777, true);
}
$decrypted_filename = 'temp/' . uniqid(rand(), true) . '.txt';
//Use it...
//Delete the file
unlink($decrypted_filename);
Feel free to comment if you can add help to this page or point out issues and solutions you have found. I do not provide support on this site, if you need help with a problem head over to stack overflow.