Uploading Multiple Files Together in one time is a bit advanced than single file upload. My Previous Article File Upload in PHP With Database, Describes you to handle single file upload. Here I am going to use that article and create Multiple File Upload in PHP with Database. The Previous one, you can’t select multiple files with the form, the  form doesn’t allow you to select multiple ...

WordPress  can provide you multiple file upload support and drag and drop support on admin section. If  you wish to bring the same service on your WordPress front end is easy and the following code help you to create multiple file upload with the help of HTML5 Forms and simple WP function. <form action="kv-upload.php" method="post" enctype="multipart/form-data" name="front_end_upload" > <label> Attach all your files here :<input type="file" ...