Send custom WooCommerce order emails with a transactional template
Create a custom WooCommerce transactional email class that triggers on a specific order status change, uses the WooCommerce email template system, and sends styled HTML email.
Customise WooCommerce checkout fields with PHP to add, remove, and reord ...
Use the woocommerce_checkout_fields filter to add new fields, remove unnecessary ones, and reorder the checkout form without a plugin.
Add custom dashboard widgets to the WordPress admin with PHP
Use wp_add_dashboard_widget() to register custom panels on the WordPress admin dashboard that display site stats, quick links, or any custom content.
Add a WooCommerce upsell section below the cart with custom PHP
Hook into WooCommerce cart page actions to display a hand-picked or automatically generated upsell product grid below the cart table.
Manage WordPress Multisite network sites programmatically with PHP
Create sites, switch database context and run cross-network operations in WordPress Multisite using get_sites and switch_to_blog.
Register and use custom WordPress post statuses in your plugin
Register custom post statuses in WordPress with register_post_status and inject them into the classic editor dropdown with JavaScript.
Add custom product tabs to WooCommerce with PHP
Use the woocommerce_product_tabs filter to add, remove, rename and reorder product page tabs in WooCommerce without a plugin.
Create a WordPress plugin settings page with the Settings API
Build a secure WordPress plugin options page using register_setting, add_settings_section and add_settings_field with sanitise callbacks.
Add a custom meta box to the WordPress post editor with secure save hand ...
Register a custom meta box on WordPress posts and pages with wp_nonce_field CSRF protection and sanitised save_post handling.