- Published:November 22nd, 2012
- Category:Drupal, Drupal 6, Drupal Forms
The short answer:
It’s not possible
The long answer:
In a simple user form it is possible to add a single on/off checkbox.
$form['thermometer_enabled'] = array( '#type' => 'checkbox', '#title' => t('Show the thermometer'), '#options' => array(0 => t("no"), 1 => t("yes")), );
But, it’s not possible to provide a default value (checked/unchecked) with a single chechbox. This causes difficulties when you want to show the saved value of a user.
A simple solution is to use a “yes/no radiobutton list” instead of a single checkbox.
$form['thermometer_enabled'] = array( '#type' => 'radios', '#title' => t('Show the thermometer'), '#options' => array(0 => t("no"), 1 => t("yes")), '#default_value' => variable_get('thermometer_enabled', 0), );
In this example the result is saved in the variable thermomoeter_enabled and has the default value of 0 (false).
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