WordPress at a glance
filter is not described

woocommerce_cart_contents_count filter-hook . WC 1.0

Get number of items in the cart.

Usage

add_filter( 'woocommerce_cart_contents_count', 'filter_function_name_7740' );
function filter_function_name_7740( $array_sum ){
	// filter...

	return $array_sum;
}
$array_sum
-

Where the hook is called

WC_Cart::get_cart_contents_count()
woocommerce_cart_contents_count
woocommerce/includes/class-wc-cart.php 658
return apply_filters( 'woocommerce_cart_contents_count', array_sum( wp_list_pluck( $this->get_cart(), 'quantity' ) ) );

Where in WP core the hook is used WooCommerce

Usage not found.