WooCommerce code snippets
WooCommerce code snippets with the limits stated first.
Focused PHP examples for a controlled use case, each paired with safeguards, a staging checklist and an honest line between a snippet and a maintained plugin.
Copy less. Understand more.
Every example explains where it runs, what it checks and what it deliberately does not solve. Use a small custom plugin or a reputable snippet manager, and test against the checkout, email format and gateways your store actually uses.
Email · PHP
Add a retry-payment link to failed-order emails
Add WooCommerce’s protected order-pay URL only to the customer failed-order email and only while the order still needs payment, with HTML and plain-text output.
Coupons · PHP
Restrict a coupon for account-only first orders
Check selected codes against the logged-in customer’s qualifying order history, with guest checkout, identity and simultaneous-order limitations made explicit.
Treat copied PHP as production code.
- Back up the site and run the example on staging first.
- Test guest and account flows, active gateways, Classic Checkout and Checkout Blocks wherever they are relevant.
- Do not combine a snippet with the equivalent plugin unless the article explicitly says that is safe.
- Remove the code cleanly if it produces an error; never edit the active parent theme to add it.
Need a configurable implementation and updates? Compare First Order Coupon Guard and Payment Rescue CTA.