Deko Boko – A reCAPTCHA Contact Form Plugin for WordPress

Support development of Deko Boko

I am currently no longer developing or supporting my WordPress plugins. I may resume development and support in the future, but I’m not sure when.

Deko Boko is a simple but highly extensible contact form for WordPress. You can see it in action on my contact page (but please only actually send me an email if you have something meaningful to say – thanks).

There are a number of good contact forms for WordPress, so why create another one? There are two things that make Deko Boko different from the others:

  1. It uses reCAPTCHA for blocking spam. reCAPTCHA is a great project that uses data from its captcha form submissions to help digitize books.
  2. The Deko Boko contact form can be extended any way you want, but without the need for complicated admin menus. If you’re comfortable editing HTML, then you can add any number and any type of input fields to the contact form. You can control which fields are optional or required. When the form is submitted, any fields that you added will have their data included in the body of the email.

Additional features:

  • The form layout is controlled by a CSS styled list, which provides a great deal of flexibility. With CSS edits you can change the position of the field labels to top-aligned, left-justified, or right-justified. Deko Boko uses the techniques outlined in Cameron Adam’s excellent article on form layout (so if you need to add things like new fieldsets and legends, follow the advice in his article). A sample form is included for you to use as a template for your own custom version.
  • Plays nicely with WP-reCAPTCHA, the WordPress plugin for using reCAPTCHA to protect against comment spam. If you already have a API key set up with WP-reCAPTCHA, Deko Boko will automatically use it.
  • Includes selectors for using different themes and languages with the reCAPTCHA widget, as well as support for custom CSS for the reCAPTCHA widget.
  • Support for multiple, custom contact forms.
  • “CC Me” option for users to receive a copy of the message they submit to you. You can specify header text and footer text to “wrap” this message. Deko Boko can automatically include the name of your blog and a timestamp in the header or footer text.
  • Security in addition to reCAPTCHA is included. Deko Boko protects against email header injections and XSS attacks.
  • You can have Deko Boko load its stylesheet only on pages where you use the Deko Boko contact form, so it won’t be loaded unnecessarily on other pages.
  • Localization support: a dekoboko.pot file is included to enable translations to other languages.
  • If you want to make a custom contact form, a template is included to get you started.
  • If you want to customize the dekoboko.css stylesheet, you can place it in your active theme folder, and Deko Boko will find it there (that way you won’t lose your stylesheet customizations when upgrading Deko Boko).


  1. Install Toppa Plugin Libraries for WordPress in your plugin folder.
  2. Install Deko Boko in your plugin folder and activate.
  3. Look for Deko under your “Settings” tab, and configure it before using.

Usage Guide

Deko Boko Settings

Before you can use Deko Boko, you need to fill out its Settings form. First, you will need a reCAPTCHA API key. If you are already using the WP-reCAPTCHA comments plugin, then you don’t need another key (you’ll see the form is pre-filled with your existing key). If you’re not using WP-reCAPTCHA, then follow the link on the Settings form to get a key. Then the only other requirement is that you provide the email address where you’d like the form submissions to go. All the other settings include comments explaining what they do.

Putting the Contact Form on a Page

Just put the shortcode tag:


on a page, and that’s where the Deko Boko contact form will appear.

That’s all there is to it! 🙂

Customizing and Extending the Contact Form

The default configuration of the form may be suitable for your needs. It includes inputs for a name, return email address, message subject, message body, and a “cc me” checkbox. All fields except the subject and “cc me” are required.

If you want to make changes or additions, you’ll need to be comfortable editing HTML (for adding or changing form fields) and CSS (if you want to change the layout of the form). Use the included sample-form.php as a guide if you want to make your own contact form (located in the Deko Boko “display” folder). Please look through that file before reading further, so you can see how it’s put together. If you want to make substantial changes, take a look at the techniques outlined in Cameron Adam’s excellent article on form layout, which I used as guide for Deko Boko.

You can add any number and any type of input fields you want. Deko Boko requires you to use either the dekoboko_optional or dekoboko_required form input arrays. Deko Boko takes advantage of PHP’s ability to process HTML form inputs as arrays, allowing you to add any new fields you like. For example, you could add an input like this in your form:

    <label for="dekoboko_favorite_color">What is your favorite color?</label>
    <input type="text" name="dekoboko_optional[favorite_color]" id="dekoboko_favorite_color" value="<?php echo $dekoboko_optional['favorite_color']; ?>" size="30" />

If you want a form field that is optional for the user to fill out, then use the dekoboko_optional array. If you want to make it a required input, then use dekoboko_required.

Deko Boko uses dekoboko.css to control the layout of the form (also in Deko Boko’s “display” folder). It uses an ordered list to control the form layout. The CSS places the labels to the left of the input fields, and then right-justifies the labels. You can adjust the CSS to change the layout (see Cameron Adam’s article, mentioned above). If you customzie the stylesheet, place your custom version in your active theme folder. Deko Boko will find it there, and you won’t have to worry about your customizations being overwritten the next time you upgrade Deko Boko.

Note the id and name values of the input field are not the same. It’s standard practice to make them the same, but in this case, the brackets in the name are needed for PHP to process the inputs as desired, but brackets are not allowed in an id. You can use any text you like for the id of an input, just make sure you use the same value with the for attribute in the label.

Also note the purpose of the php code in the input fields’ value attribute is to re-display what people type if the form fails validation. For example, if they get the reCAPTCHA wrong, the form will re-display with an error message to let them know, and the form inputs will be filled with everything they typed previously, so they don’t have to type it again. The form inputs are “cleaned” before they’re re-displayed, to protect against XSS attacks. You’ll want to include value attributes like this if you add your own fields to the form.

Changing the Look and Language of the reCAPTCHA Widget

On the Deko Boko Settings page, you can choose a theme for the reCAPTCHA widget as well as a language. If you want to use your own colors, follow the instructions on the Deko Boko Settings page and in the dekoboko.css file.

Saving and Displaying Your Custom Contact Form

By default, the contact-form.php file that comes with Deko Boko is used to display the contact form. If you need more than one contact form, our you wish to customize the form, do the following:

  • Make a copy of sample-form.php, and save it with a different name into the Deko Boko plugin’s “display” folder. You can name it anything you like. For this example, let’s call it “contact-form-2.php”
  • Using the guidelines above, edit the file however you like.
  • To display your custom form, us the Deko Boko shortcode like this:
    [dekoboko template="contact-form-2.php"]

What Does Deko Boko Mean?

Deko Boko FriendsIt is a Japanese onomatopoeia word that means bumpy, uneven or, rough (picture yourself bouncing up and down driving on a really bumpy road). It’s also the name of a wonderful Japanese kids’ program, Dekoboko Friends, which recently has been translated to English and is shown on Nick Jr. The name for the plugin is inspired by the show – all your goofy friends can use the Deko Boko plugin to get in touch with you.