- // Delete the file if it allready exists (this is needed on Win,
- // because it cannot overwrite files with rename()
- if (file_exists($params['filename'])) {
+ if (DIRECTORY_SEPARATOR == '\\' || !@rename($_tmp_file, $params['filename'])) {
+ // On platforms and filesystems that cannot overwrite with rename()
+ // delete the file before renaming it -- because windows always suffers
+ // this, it is short-circuited to avoid the initial rename() attempt