Allow user to attach multiple files but optional

Question

I want to allow the user to attach multiple files in my form and those file come to me as an attachment in an email. But I want to keep this as optional i.e. if the user attaches the file, the files come as an attachment and if the user does not attach files, the rest of the form comes in the email.

Can somebody help me with this?

I am new to php so following is my php file.

<?php
/**
* Simple example script using PHPMailer with exceptions enabled
* @package phpmailer
* @version $Id$
*/

require 'class.phpmailer.php';

try {
$mail = new PHPMailer(true); //New instance, with exceptions enabled

$to = "saxena@designmaniac.in";
$mail->AddAddress($to);
$mail->From = $_POST['email'];
$mail->FromName = $_POST['name_f'];
$mail->Subject = "Admission Form";

$body = "<table>
<tr>
<th colspan='2'>Admission Form</th>
</tr>

<tr>
<td style='font-weight:bold'>Course :</td>
<td>".$_POST['course']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Payment Mode :</td>
<td>".$_POST['p_mode']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Payment options :</td>
<td>".$_POST['p_option']."</td>
</tr>

<tr>
<td style='font-weight:bold'>First Name :</td>
<td>".$_POST['name_f']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Middle Name : </td>
<td>".$_POST['name_m']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Last Name : </td>
<td>".$_POST['name_l']."</td>
</tr>

<tr>
<td style='font-weight:bold'>E-mail : </td>
<td>".$_POST['email']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Date of Birth : </td>
<td>".$_POST['date']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Gender : </td>
<td>".$_POST['gender']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Nationality : </td>
<td>".$_POST['nationality']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Address : </td>
<td>".$_POST['address_line1']."</td>
</tr>

<tr>
<td style='font-weight:bold'>City : </td>
<td>".$_POST['city']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Zip Code : </td>
<td>".$_POST['zip']."</td>
</tr>

<tr>
<td style='font-weight:bold'>State : </td>
<td>".$_POST['state']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Country : </td>
<td>".$_POST['country']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Mobile Number : </td>
<td>".$_POST['mobile_number']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Father/Mother First Name : </td>
<td>".$_POST['fname_f']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Father/Mother Middle Name : </td>
<td>".$_POST['fname_m']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Father/Mother Last Name : </td>
<td>".$_POST['fname_l']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Father/Mother Mobile No : </td>
<td>".$_POST['mobile_number1']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Qualification : </td>
<td>".$_POST['qualification']."</td>
</tr>

<tr>
<td style='font-weight:bold'>University : </td>
<td>".$_POST['university']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Year : </td>
<td>".$_POST['year']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Qualification : </td>
<td>".$_POST['qualification_2']."</td>
</tr>

<tr>
<td style='font-weight:bold'>University : </td>
<td>".$_POST['university_2']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Year : </td>
<td>".$_POST['year_2']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Qualification : </td>
<td>".$_POST['qualification_3']."</td>
</tr>

<tr>
<td style='font-weight:bold'>University : </td>
<td>".$_POST['university_3']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Year : </td>
<td>".$_POST['year_3']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Discipline Information (School) : </td>
<td>".$_POST['discipline']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Discipline Information (Violation) : </td>
<td>".$_POST['violation']."</td>
</tr>

<tr>
<td style='font-weight:bold'>12th Mark List : </td>
<td>".$_POST['attachment1']."</td>
</tr>

<tr>
<td style='font-weight:bold'>12th Passing Certificate : </td>
<td>".$_POST['attachment2']."</td>
</tr>

<tr>
<td style='font-weight:bold'>10th Mark List : </td>
<td>".$_POST['attachment3']."</td>
</tr>

<tr>
<td style='font-weight:bold'>10th Passing Certificate : </td>
<td>".$_POST['attachment4']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Address Proof : </td>
<td>".$_POST['attachment8']."</td>
</tr>

<tr>
<td style='font-weight:bold'>Photographs : </td>
<td>".$_POST['attachment9']."</td>
</tr>

<table>";
$body = preg_replace('/\\\\/','', $body); //Strip backslashes
$mail->MsgHTML($body);

$mail->IsSMTP(); // tell the class to use SMTP
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->Port = 25; // set the SMTP server port
//$mail->Host = "saxena@designmaniac.in"; // SMTP server
//$mail->Username = "name@domain.com"; // SMTP server username
//$mail->Password = "password"; // SMTP server password

$mail->IsSendmail(); // tell the class to use Sendmail
$mail->AddReplyTo("saxena@designmaniac.in");
$mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->WordWrap = 80; // set word wrap

// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" && $imageFileType != "pdf" && $imageFileType != "docx"
&& $imageFileType != "doc" ) {
    echo "Sorry, only JPG, JPEG, PNG, GIF, pdf & Word files are allowed.";
    $uploadOk = 0;
}

if(!empty($_FILES['fileToUpload']['tmp_name']) && !empty($_FILES['fileToUpload']['name'])) {
$mail->AddAttachment($_FILES['fileToUpload']['tmp_name'],
$_FILES['fileToUpload']['name']);
}
$mail->IsHTML(true); // send as HTML
$mail->Send();
echo 'Thank You. Your form has been submitted';
} catch (phpmailerException $e) {
echo $e->errorMessage();
}

?>

Answer 1

Thanks to all you experts especially Rajapandian, Joel, NogDog etc. who have helped me a lot. Finally my problem is solved. Now the file attachment is optional for user. If he attaches files, the form comes with the attachment and if he does not attaches files, the form comes in mail without attachment. I am sharing this script with everybody. Here is the php. Once again thanks to all.

if (!empty($_FILES['fileToUpload']['tmp_name']) &&  !empty($_FILES['fileToUpload']['name'])) {
        foreach ($_FILES['fileToUpload']['tmp_name'] as $key => $value) {
            // added this IF block:
            if (file_exists($_FILES['fileToUpload']['tmp_name'][$key])) {
                $mail->AddAttachment($_FILES['fileToUpload']['tmp_name'][$key], $_FILES['fileToUpload']['name'][$key]);
            }
        }
    }  

Answer 2

First of all, your form should look like something like this:

<form method="POST" enctype="multipart/form-data">
    <input type="file" name="fileToUpload[]" id="fileToUpload[]" multiple>
    <input type="submit" value="upload version" />
</form>

Then you can use PHP to then loop through the uploaded files.

if(isset($_FILES['fileToUpload']){
  if(!empty($_FILES['fileToUpload']['tmp_name']) &&  !empty($_FILES['fileToUpload']['name'])) {
    foreach($_FILES['fileToUpload']['tmp_name'] as $key => $value)
    $mail->AddAttachment($_FILES['fileToUpload']['tmp_name'][$key], $_FILES['fileToUpload']['name'][$key]);
  }
}

Of course you need to apply the same foreach, for all the checks that you are doing on the uploaded file.

Answer 3

If the user has not selected a file attachment you can check it via the size or temp name:

If no file is selected for upload in your form, PHP will return $_FILES['userfile']['size'] as 0, and $_FILES['userfile']['tmp_name'] as none.

from http://php.net/manual/en/features.file-upload.post-method.php

and not call $mail->AddAttachment, but from your code you're already doing that so I'm not sure if I understand your question or you may need to explain it a little more.