how to create a custom setting tab in WooCommerce?

Creating a custom settings tab in WooCommerce involves a bit of PHP coding, as WooCommerce provides hooks and functions for extending its settings. Below is a basic outline of the steps you can follow to create a custom settings tab:

Step 1: Set up your WordPress plugin

1. Create a new directory for your plugin:
   In your WordPress plugins directory (usually wp-content/plugins/), create a new directory for your plugin.

2. Create the main plugin file:
   Inside your plugin directory, create a main PHP file (e.g., custom-woocommerce-tab.php).

3. Add plugin header:
   In your main plugin file, start with the plugin header, including the plugin name, description, and other details.
   

   /*
   Plugin Name: Custom WooCommerce Tab
   Description: Add a custom settings tab in WooCommerce.
   Version: 1.0
   Author: Your Name
   */

   // Your code will go here

Step 2: Creating a class

/**
 * Custom WooCommerce Tab Class
 */
class Wooprint_Wc_Settings {


}

// Instantiate the class
new Wooprint_Wc_Settings();

In this class-based example:

• The class is instantiated at the end, which automatically sets up the hooks and initializes the functionality.

This class encapsulates the functionality related to your custom WooCommerce tab, providing a more structured and organized way to handle your code.

Step 3: Add the custom settings tab

/**
 * Custom WooCommerce Tab Class
 */
class Wooprint_Wc_Settings {
        /**
         * string tab id;
         */
        public $tab_id;

        /**
         * Run all the actions and filter here.
         */
        public function __construct() {
            $this->tab_id = 'wooprint_tab';
            add_filter( 'woocommerce_settings_tabs_array', array( $this, 'wooprint_add_new_tab' ), 50 );
        }

                /**
         * Add a new tab to the WooCommerce settings tabs array
         *
         * @param array $tabs all tabs.
         * @return array
         */
        public function wooprint_add_new_tab( $tabs ) {
            $tabs[ $this->tab_id ] = __( 'Wooprint Tab', 'wooprint' );
            return $tabs;
        }

}

// Instantiate the class
new Wooprint_Wc_Settings();

Step 4: Add the custom section inside the custom settings tab

/**
 * Custom WooCommerce Tab Class
 */
class Wooprint_Wc_Settings {
        /**
         * string tab id;
         */
        public $tab_id;

        /**
         * Run all the actions and filter here.
         */
        public function __construct() {
            $this->tab_id = 'wooprint_tab';
            add_filter( 'woocommerce_settings_tabs_array', array( $this, 'wooprint_add_new_tab' ), 50 );
            add_action( 'woocommerce_sections_' . $this->tab_id, array( $this, 'wooprint_add_new_section' ) );
        }

        /**
         * Add a new tab to the WooCommerce settings tabs array
         *
         * @param array $tabs
         * @return array
         */
        public function add_wooprint_tab( $tabs ) {
            $tabs[ $this->tab_id ] = __( 'Wooprint Tab', 'wooprint' );
            return $tabs;
        }

        /**
         * Add new section inside tab.
         *
         * @return void
         */
        public function wooprint_add_new_section() {
            global $current_section;

            $sections      = array(
                ''                 => __( 'General Settings', 'wooprint' ),
                'invoice_settings' => __( 'Invoice Settings', 'wooprint' ),
            );
            $sections_keys = array_keys( $sections );

            echo '<ul class="subsubsub">';

            foreach ( $sections as $id => $label ) {
                $url = add_query_arg(
                    array(
                        'page'    => 'wc-settings',
                        'tab'     => $this->tab_id,
                        'section' => $id,
                    ),
                    admin_url( 'admin.php' )
                );

                $current = $current_section === $id ? 'current' : '';

                $separator = end( $sections_keys ) === $id ? '' : '|';

                echo '<li><a href="' . esc_url( $url ) . '" class="' . esc_html( $current ) . '">' . esc_attr( $label ) . '</a> ' . esc_attr( $separator ) . ' </li>';
            }

            echo '</ul><br class="clear" />';
        }

}

// Instantiate the class
new Wooprint_Wc_Settings();

Step final: Test your custom tab

Go to WooCommerce > Settings, and you should see your custom tab. You can then configure and save your custom settings.

Note: This is a basic example, and you may need to enhance it based on your specific needs. You can refer to the WooCommerce documentation for more details on available hooks and functions.