My Form

<?php
/*
Template Name: KKJ
*/
?>

<?php

$formTitleField = 'Formulir-KKJ'; // change this as needed
$formTitleField = 'form_title'; // change this as needed
if (is_array($_POST) && !empty($_POST)) {
    $title = isset($_POST[$formTitleField]) ?
                   $_POST[$formTitleField] : 'Untitled';
    $posted_data = array();
    $uploaded_files = array();

    // Get posted values
    foreach ($_POST as $key => $val) {
        if ($key != $formTitleField) {
            $posted_data[$key] = $val;
        }
    }

    // Get uploaded files
    if (is_array($_FILES) && !empty($_FILES)) {
        foreach ($_FILES as $key => $file) {
            if (is_uploaded_file($file['tmp_name'])) {
                $posted_data[$key] = $file['name'];
                $uploaded_files[$key] = $file['tmp_name'];
            }
        }
    }

    // Prepare data structure for call to hook
    $data = (object) array(
        'title' => $title,
        'posted_data' => $posted_data,
        'upload' => $_FILES['upload']['name'],
        'uploaded_files' => array ( 'upload' => 'http://localhost/gbisawangan.org/assets/gbr/'));

    // Call hook to submit data
    do_action_ref_array('cfdb_submit', array(&$data));
}


if(isset($_POST['submitted'])) {
    if(trim($_POST['contactName']) === '') {
        $nameError = 'Please enter your name.';
        $hasError = true;
    } else {
        $name = trim($_POST['contactName']);
    }

    if(trim($_POST['email']) === '')  {
        $emailError = 'Please enter your email address.';
        $hasError = true;
    } else if (!preg_match("/^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$/i", trim($_POST['email']))) {
        $emailError = 'You entered an invalid email address.';
        $hasError = true;
    } else {
        $email = trim($_POST['email']);
    }

    if(trim($_POST['comments']) === '') {
        $commentError = 'Please enter a message.';
        $hasError = true;
    } else {
        if(function_exists('stripslashes')) {
            $comments = stripslashes(trim($_POST['comments']));
        } else {
            $comments = trim($_POST['comments']);
        }
    }

    if(!isset($hasError)) {
        $emailTo = get_option('tz_email');
        if (!isset($emailTo) || ($emailTo == '') ){
            $emailTo = get_option('admin_email');
        }
        $subject = '[PHP Snippets] From '.$name;
        $body = "Name: $name \n\nEmail: $email \n\nComments: $comments";
        $headers = 'From: '.$name.' <'.$emailTo.'>' . "\r\n" . 'Reply-To: ' . $email;

        wp_mail($emailTo, $subject, $body, $headers);
        $emailSent = true;
    }

} ?>
<?php get_header(); ?>
    <section class="container clearfix">
        <div id="header" class="">
            <header class="container page_info clearfix breadcrumb">
                <h1 class="regular bottom_line"><?php the_title(); ?></h1>
            </header><!-- .entry-header -->
        </div>
        <div class="clear"></div>

        <div id="primary" class="site-content content clearfix">
            <div id="content" role="main">
            <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
            <div <?php post_class() ?> id="post-<?php the_ID(); ?>">
                    <div class="entry-content">
                        <?php if(isset($emailSent) && $emailSent == true) { ?>
                            <div class="thanks">
                                <p>Thanks, your email was sent successfully.</p>
                            </div>
                        <?php } else { ?>
                            <?php the_content(); ?>
                            <?php if(isset($hasError) || isset($captchaError)) { ?>
                                <p class="error">Sorry, an error occured.<p>
                            <?php } ?>

                        <form action="<?php the_permalink(); ?>" id="contactForm" method="post">
                            <ul class="contactform">
                            <li>
                                <label for="contactName">Name:</label>
                                <input type="text" name="contactName" id="contactName" value="<?php if(isset($_POST['contactName'])) echo $_POST['contactName'];?>" class="required requiredField" />
                                <?php if($nameError != '') { ?>
                                    <span class="error"><?=$nameError;?></span>
                                <?php } ?>
                            </li>

                            <li>
                                <label for="email">Email</label>
                                <input type="text" name="email" id="email" value="<?php if(isset($_POST['email']))  echo $_POST['email'];?>" class="required requiredField email" />
                                <?php if($emailError != '') { ?>
                                    <span class="error"><?=$emailError;?></span>
                                <?php } ?>
                            </li>
<li> <input type="file" name="upload"/> </li>
                            <li><label for="commentsText">Message:</label>
                                <textarea name="comments" id="commentsText" rows="20" cols="30" class="required requiredField"><?php if(isset($_POST['comments'])) { if(function_exists('stripslashes')) { echo stripslashes($_POST['comments']); } else { echo $_POST['comments']; } } ?></textarea>
                                <?php if($commentError != '') { ?>
                                    <span class="error"><?=$commentError;?></span>
                                <?php } ?>
                            </li>

                            <li>
                                <input type="submit">Send email</input>
                            </li>
                        </ul>
                        <input type="hidden" name="submitted" id="submitted" value="true" />
                    </form>
                <?php } ?>
                </div><!-- .entry-content -->
            </div><!-- .post -->

                <?php endwhile; endif; ?>
                <div class="clear padding10"></div>



            </div><!-- #content -->
        </div><!-- #primary .site-content -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>