admin_url('admin-ajax.php'))); } public function woocommerceMissingWcNotice() { echo '

' . sprintf('Tinkoff payment gateway requires WooCommerce to be installed and active. You can download %s here.', 'WooCommerce') . '

'; } public function woocommercePaymentGateways($gateways) { $gateways[] = 'WC_Tinkoff_Gateway'; return $gateways; } public static function getInstance() { if (self::$instance === null) { self::$instance = new self(); } return self::$instance; } } WC_Tinkoff::getInstance();