I am in the process of creating a plugin to integrate a custom WooCommerce payment gateway. Although I have successfully activated it in the admin panel but the payment option does not yet appear on the checkout page. WooCommerce version: 8.4.0 WordPress version: 6.4.2 Here is the complete code of my plugin if (!defined("ABSPATH")) { exit(); // Exit if accessed directly. } // Hook to plugins_loaded to ensure WooCommerce is loaded add_action("plugins_loaded", "init_woocommerce_to_stripe", 0); function init_woocommerce_to_stripe() { if (!class_exists("WC_Payment_Gateway")) { return; } // Define the custom payment gateway class class WC_Gateway_WooCommerce_To_Stripe extends WC_Payment_Gateway { // Declare properties public $redirect_url; public function __construct() { // Basic setup for the gateway $this->id = "woocommerce_to_stripe"; $this->has_fields = false; $this->icon = ""; $this->method_title = "WooCommerce to Stripe"; $this->method_description = "Redirects users to a custom URL with order ID and total amount for Stripe payments."; $this->supports = []; // Initialize settings $this->init_form_fields(); $this->init_settings(); // Get settings values $this->title = $this->get_option("title"); $this->description = $this->get_option("description"); $this->enabled = $this->get_option("enabled"); // Use the constructor to set dynamic properties $this->redirect_url = $this->get_option( "redirect_url", "https://www.example.com/" ); // Default redirect URL // Save settings on WooCommerce admin options update add_action( "woocommerce_update_options_payment_gateways_" . $this->id, [$this, "process_admin_options"] ); } // Define form fields for WooCommerce settings public function init_form_fields() { $this->form_fields = [ "enabled" => [ "title" => "Enable/Disable", "type" => "checkbox", "label" => "Enable WooCommerce to Stripe", "default" => "yes", ], "title" => [ "title" => "Title", "type" => "text", "description" => "This controls the title which the user sees during checkout.", "default" => "WooCommerce to Stripe", "desc_tip" => true, ], "description" => [ "title" => "Description", "type" => "textarea", "description" => "This controls the description which the user sees during checkout.", "default" => "Redirects users to a custom URL with order ID and total amount for Stripe payments.", ], "redirect_url" => [ "title" => "Redirect URL", "type" => "text", "description" => "Enter the custom URL where users will be redirected with order ID and total amount.", "default" => "https://www.example.com/", ], ]; } // Process payment and redirect to the custom URL public function process_payment($order_id) { $order = wc_get_order($order_id); // Redirect URL with order ID and total amount as query parameters $redirect_url = $this->redirect_url . "?order_id=" . $order_id . "&total_amount=" . $order->get_total(); return [ "result" => "success", "redirect" => $redirect_url, ]; } } // Register the custom payment gateway class function add_woocommerce_to_stripe_gateway($gateways) { $gateways[] = "WC_Gateway_WooCommerce_To_Stripe"; return $gateways; } // Filter to add the custom payment gateway class add_filter( "woocommerce_payment_gateways", "add_woocommerce_to_stripe_gateway", 999 ); }