Upload and Validate files with $_FILES array then send with swiftmailer

[carygh]

I want to create a form to allow visitors upload files and send the uploaded files to me with swiftmailer. I am trying to accomplish this with the below code but don't know how to put it in swiftmailer attach() function after validation and make sure all attached file is sent? please help. Also, if there is a better way to do this please let me know. Thanks.

<form action="" method="post" enctype="multipart/form-data">
<p>Pictures:
<input type="file" name="pictures[]" />
<input type="file" name="pictures[]" />
<input type="file" name="pictures[]" />
<input type="submit" value="Send" />
</p>
</form>

I copied this script from another side. What is the purpose of

 $uploaded_array[] .= "Uploaded file '".$name."'.<br/>\n"; 

<?php
foreach ($_FILES["attachment"]["error"] as $key => $error)
{
       $tmp_name = $_FILES["attachment"]["tmp_name"][$key];
       if (!$tmp_name) continue;

       $name = basename($_FILES["attachment"]["name"][$key]);

    if ($error == UPLOAD_ERR_OK)
    {
        if ( move_uploaded_file($tmp_name, "/tmp/".$name) )
            $uploaded_array[] .= "Uploaded file '".$name."'.<br/>\n";
        else
            $errormsg .= "Could not move uploaded file '".$tmp_name."' to '".$name."'<br/>\n";
    }
    else $errormsg .= "Upload error. [".$error."] on file '".$name."'<br/>\n";
}
?>