How To Use "checkbox" Input Fields?

A "checkbox" input field is defined as <input type="checkbox" .../>. A "checkbox" input field can be used to create a checkbox to allow viewers to switch on or off a boolean flag. There are other attributes you may need to use for a "checkbox" input field:

• name="fieldName" - Specifies the name of this field.
• value="selectedValue" - Specifies the value to be used when this checkbox is selected. The default is value="on".
• checked="checked" - Specifies that this checkbox is checked by default.

Here is a tutorial example with three checkbox input fields:

<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
 <head>
  <title>Checkbox Input Fields</title>
 </head>
 <body>
  <h4>Online Survey</h4>
  <form action="http://localhost/submit">
  <p style="background-color: #eeeeee; padding: 8px;">
   You are learning XHTML: <input type="checkbox"
    name="check1"/><br/>
   You are learning CSS: <input type="checkbox"
    name="check2" value="css"/><br/>
   You are learning PHP: <input type="checkbox"
    name="check3" value="php" checked="checked"/><br/>
   <input type="submit" value="Submit"/>
  </p>
  </form>
 </body>
</html>

If you save the above document as checkbox_input.html, and view it with Internet Explorer, you will see a form with three checkbox input fields as shown below:

⇒ Values Submitted in HTML Checkbox Fields

⇐ Using HTML 'password' Input Fields

⇑ HTML Forms and Input Fields

⇑⇑ HTML Tutorials