Attempts to rename oldname to newname.
Returnerer TRUE ved succes, FALSE ved fejl.
Bemærk: Prior to PHP 4.3.3, rename() could not rename files across partitions on *nix based systems.
Bemærk: As of PHP 5.0.0 rename() can also be used with some URL wrappers. Refer to Appendiks L for a listing of which wrappers support rename().
Bemærk: The wrapper used in oldname MUST match the wrapper used in newname.
Bemærk: Kontekst understøttelse blev tilføjet i PHP 5.0.0.
See also copy(), unlink(), and move_uploaded_file().