woocommerce_is_checkout │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_is_checkout', 'wp_kama_woocommerce_is_checkout_filter' );

/**
 * Function for `woocommerce_is_checkout` filter-hook.
 * 
 * @param  $false 
 *
 * @return 
 */
function wp_kama_woocommerce_is_checkout_filter( $false ){

	// filter...
	return $false;
}

$false

-

Where the hook is called

return ( $page_id && is_page( $page_id ) ) || wc_post_content_has_shortcode( 'woocommerce_checkout' ) || apply_filters( 'woocommerce_is_checkout', false ) || Constants::is_defined( 'WOOCOMMERCE_CHECKOUT' );

Where the hook is used in WooCommerce