Creating a client-side content submission form

The first step toward giving visitors the ability to contribute to a website is to present a form that they can use to submit new content. This recipe shows how to create a shortcode that can easily be inserted on any WordPress page to render a simple form.

Getting ready

You should be running the final version of the Chapter 4 - Book Reviews plugin created in Chapter 4, The Power of Custom Post Types. Alternatively, you can download the final resulting code (ch4/ch4-book-reviews/ch4-book-reviews-v12.php) from the book's GitHub page.

How to do it...

Follow these steps to create a new shortcode that displays a simple form:

1. Navigate to the WordPress plugins directory of your development installation.
2. Create a new directory called ch7-book-review-user-submission and open it.
3. Create a text file called ch7-book-review-user-submission.php.
4. Open the new file in a code editor and add an appropriate header at...