ProcessWire form with "regular" fields and file uploads. The first two files (contact-form and contact-success) are for the contact form and the success page with normal fields. This works successfully. The third and fourth files (contact-form2 and contact-success2) are the same, but with the file-upload field added. These are currently not work…

contact-form.php

<form action="/customer-service/contact/contact-success/" method="post">
    <p><label for="contactname">Name:</label></p>
    <p><input type="text" name="contactname"></p>
    <p><label for="email">E-Mail:</label></p>
    <p><input type="email" name="email"></p>
    <p><label for="comments">Comments:</label></p>
    <p><textarea name="comments" cols="25" rows="6"></textarea></p>
    <button type="submit">Submit</button>
</form>

contact-form2.php

<form action="/customer-service/contact/contact-success/" method="post" enctype="multipart/form-data">
    <p><label for="contactname">Name:</label></p>
    <p><input type="text" name="contactname"></p>
    <p><label for="email">E-Mail:</label></p>
    <p><input type="email" name="email"></p>
    <p><label for="comments">Comments:</label></p>
    <p><textarea name="comments" cols="25" rows="6"></textarea></p>
    <p>Click the "Select Files" button below to upload your photo.</p><input type="file" name="contact_photo" />
    <button type="submit">Submit</button>
</form>

contact-success.php

<?php  			
// First, confirm that a submission has been made

if ($input->post->contactname)
{

    // Save in the ProcessWire page tree; map submission to the template fields
    $np = new Page(); // create new page object
    $np->template = $templates->get("contact_submission");
    $np->parent = $pages->get("/customer-service/contact-us/contact-submission-listing/");

    // Send all form submissions through ProcessWire sanitization
    $title = $sanitizer->text($input->post->contactname);
    $name = $sanitizer->text($input->post->contactname);
    $contactname = $sanitizer->text($input->post->contactname);
    $email = $sanitizer->email($input->post->email);
    $comments = $sanitizer->textarea($input->post->comments);

    // Match up the sanitized inputs we just got with the template fields
    $np->of(false);
    $np->title = $contactname;
    $np->name = $contactname;
    $np->contactname = $contactname;
    $np->email = $email;
    $np->comments = $comments;

    // Save/create the page
    $np->save();

}

?>

contact-success2.php

<?php

if ($input->post->submit)  // Test that the form was submitted successfully, so we can start processing the entry.
{

	// Handle the photo upload of the entry in a separate routine from the rest of the fields
	$message = '';

    // Set a temporary upload folder where the files are stored during form processing
    $upload_path = $config->paths->assets . "files/temp/";

    // New wire upload
    $contact_photo = new WireUpload('contact_photo'); // References the name of the field in the HTML form that uploads the photo
    $contact_photo->setMaxFiles(5);
    $contact_photo->setOverwrite(false);
    $contact_photo->setDestinationPath($upload_path);
    $contact_photo->setValidExtensions(array('jpg', 'jpeg', 'png', 'gif'));

    // execute upload and check for errors
    $files = $contact_photo->execute();

    if(!$contact_photo->getErrors())
    {

        // Send all the form's $_POST submissions through ProcessWire's sanitization and/or make the sanitized value equal to a variable with the same name as the template fields we'll be populating
        $title = $sanitizer->text($input->post->contactname);
        $name = $sanitizer->text($input->post->contactname);
        $contactname = $sanitizer->text($input->post->contactname);
        $email = $sanitizer->email($input->post->email);
        $comments = $sanitizer->textarea($input->post->comments);

        // Do an initial save in the ProcessWire page tree; set the necessary information (template, parent, title, and name)
        $np = new Page(); // create new page object
        $np->template = $templates->get("contact_submission"); // set the template that applies to pages created from form submissions
        $np->parent = $pages->get("/customer-service/contact-us/contact-submission-listing/"); // set the parent for the page being created here
        $np->title = $contact_name;
        $np->name = $contact_name;
        $np->save();

        // Match up the sanitized inputs from above with the fields in the template, so they can actually fill the fields for the page we're creating
        $np->of(false);
        $np->contactname = $contactname;
        $np->email = $email;
        $np->comments = $comments;

        // Run photo upload
        foreach($files as $filename)
        {
        $np->images = $upload_path . $filename;
        }

        // save page again
        $np->save();

        // remove all tmp files uploaded
        foreach($files as $filename) 
        unlink($upload_path . $filename);
        $message .= "<p class='message'>Files uploaded!</p>";
	}

	else
	{
        // Remove files from the temporary folder, where they were placed above
        foreach($files as $filename) unlink($upload_path . $filename);
        // Get the errors
        foreach($contact_photo->getErrors() as $error) $message .= "<p class='error'>$error</p>";
	}
} // End of photo-upload routine

?>