WordPress

Add Custom Fields to Comments

I already have plenty of tutorials about working with custom fields – a tutorial about creating custom meta boxes for posts, a tutorial about custom taxonomy term fields, a tutorial about options pages and even my own Simple Fields plugin intended to simplify the work with all that stuff. Now it is time to talk about meta boxes for comments.

The long story short let me show you what we are going to create:

create a custom metabox for WordPress comments

It is not a very difficult meta box, but I am just going to show you the process how it works, everything else is up to you. We are going to do it without any plugins first.

Sanitize Early, Escape Late, Always Validate

If you’re working with WordPress for a while, I am sure you’ve heard about such words like “sanitizing” or “escaping” or at least have seen in the code sanitize_text_field(), esc_html() or similar functions.

This tutorial is intended to sort this whole data validation thing out once and forever.

Create Beautiful Datepicker Field in WordPress Admin

In this tutorial I will show you how you can easily create a beautiful datepicker field just like on the screenshot below without any additional JavaScript libraries.

create custom datepicker field in user settings

How to Handle Theme Updates from your Custom Server

My tutorial about configuring self-hosted plugin updates became quite popular so I decided to publish a similar tutorial related to WordPress themes.

The whole tutorial consists of two steps – in the first step we are going to configure our custom update server, in the second step – create a theme actually.

Meta Boxes Conditional Logic

In this tutorial I will explain you how to show or hide a field depending on a value of another field within a simple WordPress metabox.

Like this:

conditional logic in WordPress meta boxes
Show or hide a custom field depending on a value of another field.

Add Custom Fields to a Taxonomy

In this tutorial I will show you step by step how to add a custom field to a custom taxonomy in WordPress. Of course, this method is going to work great for default taxonomies as well.

First of all I will show you how to do it without any plugins and then we will do the same with the help of my Simple Fields plugin, so you can see the difference.

Well, let’s take a look what we are going to create here.

WordPress custom fields in taxonomy
Here I decided to add multiple fields – a simple text field and an image field.

And this is how it looks when you go edit a specific taxonomy term:

add custom fields on edit term pages

Create Custom Options Pages

WordPress custom settings pages are quite useful when you are developing a plugin or a theme. You will definitely need some place in admin area where users can configure your plugin and Settings API is perfect for that.

And yes, we are going to use Settings API which will help us creating our options pages. It was added in WordPress 2.7 only. I really doubt that you are using a WordPress version prior 2.7, but anyway I think I have to mention that.

Below is the screenshot of a settings page we are going to create in this tutorial. I decided to make it simple, so we have multiple fields – a text field and a checkbox.

how to create a WordPress option page with field validation