rename Renames a file or directory &reftitle.description; boolrename stringoldname stringnewname resourcecontext Attempts to rename oldname to newname, moving it between directories if necessary. If renaming a file and newname exists, it will be overwritten. If renaming a directory and newname exists, this function will emit a warning. &reftitle.parameters; oldname The old name. The wrapper used in oldname must match the wrapper used in newname. newname The new name. On Windows, if newname already exists, it must be writable. Otherwise rename fails and issues E_WARNING. context ¬e.context-support; &reftitle.returnvalues; &return.success; &reftitle.examples; ]]> &reftitle.seealso; copy unlink move_uploaded_file