$categories = get_categories('hide_empty=0&orderby=name');
foreach ($categories as $cat){
    $category_array = array( 
    $cat->term_id => $cat->name
      );
  
}
  $options[] = array(
      'name' => __('Weekly programs section', 'options_check'),
      'desc' => __('Choose category for weekly programs section.', 'options_check'),
      'id' => 'weekly_section',
      'std' => 'three',
      'type' => 'select',
      'class' => 'mini', 
      'options' => $category_array
    );