woocommerce_gateway_title │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_gateway_title', 'wp_kama_woocommerce_gateway_title_filter', 10, 2 );

/**
 * Function for `woocommerce_gateway_title` filter-hook.
 * 
 * @param  $title 
 * @param  $id    
 *
 * @return 
 */
function wp_kama_woocommerce_gateway_title_filter( $title, $id ){

	// filter...
	return $title;
}

$title

-

$id

-

Where the hook is called

return apply_filters( 'woocommerce_gateway_title', $title, $this->id );

Where the hook is used in WooCommerce