WordPress: Add an extra column in the All Users admin page

WordPress development involves extending information were possible to suite business needs. For those that need to add an extra column in the Users table, heres how to do it in your plugin or functions.php file.

function all_columns( $columns ){
   $columns['cool_column'] = 'Column Header';
   return $columns;

function custom_column_content( $content, $column, $user_id ){
   if ( $column === 'cool_column' ) {
      $content = "custom data";
      return $content;

add_filter( 'manage_users_columns', 'all_columns' );
add_filter( 'manage_users_custom_column', 'custom_column_content', 10, 3 );

WooCommerce: Get children of a grouped product

Here is a simple example.

 * Test creating a new grouped product.
 * @since 2.7.0
function test_grouped_product_create()
    $simple_product = WC_Helper_Product::create_simple_product();
    $product = new WC_Product_Grouped();
    $product->set_name('My Grouped Product');
    $read_product = new WC_Product_Grouped($product->get_id());
    $this->assertEquals('My Grouped Product', $read_product->get_name());
    $this->assertEquals(array($simple_product->get_id()), $read_product->get_children());


WooCommerce: Exclude products from a particular category on the shop page

You need to add this code to your child theme’s functions.php file or via a plugin that allows custom functions to be added, such as the Code snippets plugin. Please don’t add custom code directly to your parent theme’s functions.php file as this will be wiped entirely when you update the theme.

* Exclude products from a particular category on the shop page
function custom_pre_get_posts_query( $q ) {

$tax_query = (array) $q->get( 'tax_query' );

$tax_query[] = array(
'taxonomy' => 'product_cat',
'field' => 'slug',
'terms' => array( 'clothing' ), // Don't display products in the clothing category on the shop page.
'operator' => 'NOT IN'

$q->set( 'tax_query', $tax_query );

add_action( 'woocommerce_product_query', 'custom_pre_get_posts_query' );