Boolean checkbox in sytems_settings_form

Question

I have written the following code

$form['checking'] = array(
    '#type' => 'checkbox',
    '#default_value' => variable_get('checking',0),
    '#title' => t('title'),
    '#required' => TRUE
  );

  return system_settings_form($form);

the checkbox preserve its checked and unchecked state in the form but I can't get value of the checkbox.

I'm printing its value

dsm(variable_get('checking);
print_r(variable_get('checking',0));

Whether a checkbox is checked or unchecked, in both cases it returns me 1

How can I know whether the checkbox is checked or not?

Answer 1

Have you tried removing the "#required" => TRUE line? If you uncheck the checkbox and the form item is required the form won't validate and your submit callback will not be called.

Also, you should check that your variable isn't overridden in settings.php https://www.drupal.org/node/1525472

Answer 2

hmmm, looks like you're print_r'ing the result from variable_get() - ie. you're unwillingly asking "did variable_get() run correctly?"

try storing the result from variable_get in a variable then print_r'ing that. or use dsm() instead (from the Devel module).

cheers, Luco