PHP 7 Programming Cookbook

Creating an HTML radio element generator

A radio button element generator will share similarities with the generic HTML form element generator. As with any generic element, a set of radio buttons needs the ability to display an overall label and errors. There are two major differences, however:

• Typically, you will want two or more radio buttons
• Each button needs to have its own label

How to do it...

1. First of all, create a new Application\Form\Element\Radio class that extends Application\Form\Generic:

   namespace Application\Form\Element;
   use Application\Form\Generic;
   class Radio extends Generic
   {
     // code
   }
   

2. Next, we define class constants and properties that pertain to the special needs of a set of radio buttons.
3. In this illustration, we will need a ...