WooCommerce: Only Allow 1 Product in the Cart

Here’s how to limit your WooCommerce Cart to just one product at a time.

This simple solution can be used for many applications. For example, your store may only allow to buy one subscription at a time.

On this same website, for example, customers can only purchase one product at a time so it’s easier for me to manage invoicing and payments, given that I switch PayPal and Stripe accounts based on what’s inside the cart.

Here’s the quick fix – enjoy!

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WooCommerce: How to Add Scripts to the Checkout Page

A client needed to add her SSL Logo Seal to the checkout page. The problem is that the code she was given had also a JS part, together with a bunch of HTML.

Unfortunately you can’t just copy and paste JavaScript in the checkout page… you need a workaround!

In this article, we will learn about wp_footer, a handy WordPress hook to print anything inside the footer, a bit of conditional logic to target the WooCommerce checkout page only (and therefore excluding the Thank You Page and Order Pay Page), and how to print HTML inside a PHP function. Enjoy!

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WooCommerce: Apply Coupon Programmatically if Product @ Cart

Users can manually enter a coupon code, refresh the Cart and see their discount apply… or you can do that automatically (or “programmatically” as we say in the dark web) when a user adds a product to the WooCommerce Cart ๐Ÿ™‚

All you’ve got to do is creating a coupon, and then a PHP function will do the whole work. Automation is the best thing in the world!

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WooCommerce: Fixing Fatal error Call to undefined function wc_get_order()

I developed a custom payment gateway plugin for a client, who wanted to add a similar method to “cod” (cash on delivery). FYI, he wanted to add a method called “card on delivery”. I simply duplicated the code, added the PHP to a file, made a plugin and gave him the plugin zip file. And everything was working great… until he did a test checkout. Continue reading WooCommerce: Fixing Fatal error Call to undefined function wc_get_order()

WooCommerce: Exclude Category from ‘product_categories’ Shortcode

Sometimes solutions are very simple, and you don’t need rocket science to fix your issue!

A client of mine needed to hide a category from the Product Categories Shortcode ([product_categories]); in fact, there is no parameter that allows you to “exclude” a given product category such as “uncategorized” or whatever category you wish.

A rare issue, but once again a quick fix! Here’s how you do it.

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WordPress: How to Add CSS to a Specific URL

This is an interesting topic. A WordPress/WooCommerce client could not add CSS via the usual way. In fact, Gravity Forms plugin (and in particular the “directory” extension), stores entries in the database BUT the directory page and the entries filtered list have the same classes, ids, and cannot be “targeted” with CSS.

Long story short, and Gravity Form or not Gravity Form, here’s the snippet you can use to add CSS to any WordPress page as long as you know its URL.

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WooCommerce: Hide Categories From Product Cat Widget

A client asked me to customize the Product Categories Widget that comes included with WooCommerce. In this case, they wanted to show ALL categories but the current one (when looking at a category page of course).

You can also use this tutorial to hide certain category IDs from the widget, or maybe “all product category names that start with a given string of text”. Case studies are millions, but the code base is always the same – we’ll make use of the “woocommerce_product_categories_widget_args” filter and provide a list of product categories to exclude. Enjoy!

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WooCommerce: Redirect to Custom Thank you Page

How can you redirect customers to a beautifully looking, custom, thank you page?

Thankfully you can add some PHP code to your functions.php or install a simple plugin and define a redirect to a custom WordPress page (as opposed to the default order-received endpoint). This is a great way for you to add specific up-sells, social media share and other information that could help you convert additional sales.ย 

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WooCommerce: Remove Shipping Labels @ Cart (e.g. “Flat Rate”)

WooCommerce functions add the shipping method label on the Cart totals, on the left hand side of the price. This ruins the price amounts alignment (subtotal, shipping, taxes, total) and many clients have asked me to remove it completely. Also, it could be that sometimes you don’t want to show the name of a shipping rate on the front-end. So, here’s how you do it!

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