2

You can check mime type of uploaded image before upload to media. Add mimeTypes in $allowmimeType which you want to allow. then check uploaded files mimetype $fileMimeType. If not found in allowed mimetype then return false. // Insert Attachment function insert_attachment($file_handler, $post_id, $setthumb='false') { if ($_FILES[$file_handler]['error'] ...


Only top voted, non community-wiki answers of a minimum length are eligible