Hi Omprakash,
You don’t have to modify core code. Use following code in functions.php of your theme. It will rename the meida files as per your requirements.
/*Code to rename media files in wordpress*/
function custom_upload_name($filename){
$info = pathinfo($filename);
$ext = empty($info[‘extension’]) ? ” : ‘.’ . $info[‘extension’];
$filename = time().’.’ . $info[‘extension’];
return $filename;
}
add_filter(‘sanitize_file_name’, ‘custom_upload_name’, 10);
/*Its simple*/
Regards
OnCar
