Save a checkbox group

• 

  rtransat · Member · Jul 6, 2013 at 11:26 am

  • Copy link
  • Add topic to favorites

  Hi,

  I would like to save a checkbox group in a widget but when I save the checkbox get back in the state of unchecked

  Here is the code :
  
<?php
public function form( $instance ) {
$instance = wp_parse_args( (array) $instance, array('categories' => 0 ) );

  $categories = $instance['categories'];

  $cats = get_categories(array('hide_empty' => false));
  ?>

  <p>
  <?php foreach($cats as $k => $category): ?>
  <input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('categories') . $k; ?>" name="<?php echo $this->get_field_name('categories'); ?>[]" value="<?php echo $category->cat_ID; ?>" <?php checked(isset($instance['categories']) ? $instance['categories'] : 0); ?>>
  <label for="<?php echo $this->get_field_id('categories') . $k; ?>"><?php echo $category->cat_name; ?></label>

  <?php endforeach; ?>
  </p>
  <?php
  }

  public function update( $new_instance, $old_instance ) {
  $instance = $old_instance;

  $instance['categories'] = $new_instance['categories'];

  return $instance;
  }

  Thank.

  PS : Sorry for my english.

• 

  supportbot · Member · Jul 6, 2013 at 11:26 am

  • Copy link

  You did not specify a blog address or reason for posting when you created this topic.

  This support forum is for blogs hosted at WordPress.com. If your question is about a self-hosted WordPress blog then you’ll find help at the WordPress.org forums.

  If you don’t understand the difference between WordPress.com and WordPress.org, you may find this information helpful.

  If you forgot to include a link to your blog, you can reply and include it below. It’ll help people to answer your question.

  This is an automated message.