Change filename during upload
If you want to use the above sanitize_file_name filter, you could try this: function make_filename_hash($filename) { if( isset($_REQUEST[‘post_id’]) ) { $post_id = (int)$_REQUEST[‘post_id’]; }else{ $post_id=0; } $info = pathinfo($filename); $ext = empty($info[‘extension’]) ? ” : ‘.’ . $info[‘extension’]; $name = basename($filename, $ext); if($post_id>0){ return $post_id.”_”.$name . $ext; }else{ return $name . $ext; } } add_filter(‘sanitize_file_name’, … Read more