Attempts to rename oldname to newname.
Vrne TRUE ob uspehu ali FALSE ob napaki.
Opomba: Prior to PHP 4.3.3, rename() could not rename files across partitions on *nix based systems.
Opomba: As of PHP 5.0.0 rename() can also be used with some URL wrappers. Refer to Dodatek L for a listing of which wrappers support rename().
Opomba: The wrapper used in oldname MUST match the wrapper used in newname.
Opomba: The context parameter was added as of PHP 5.0.0.
See also copy(), unlink(), and move_uploaded_file().