upload file magento

$_FILES['image']['name'];
$uploader = new Varien_File_Uploader('image');
$uploader->setAllowedExtensions(array('jpg','png','gif'));
$uploader->setAllowRenameFiles(false);
$uploader->setFilesDispersion(false);
$destFile = $path.$_FILES['image']['name'];
$filename = $uploader->getNewFileName($destFile);
$uploader->save($path, $filename);