php

Question

395 votes

0 answers

php - WooCommerce: Custom function adding free product - Cart page getting broken for orders up to 3000

Get the solution ↓↓↓

Solution:

SHORTENING REPETITIVE CODE with a PHP FOR loop:

This doesn't answer directly to your question, but your code is very long and redundant. With a simple php for loop you can drastically shorten the first 2 functions...

It seems that your code could come partially from this thread:
Add a product to woocommerce cart if other cart items are in a specific category

Update:

Then I have MERGED all your code in your first hooked function qualifies_for_incentive().
So the code below does exactly the same thing as all your code (20 lines without comments):

add_action('woocommerce_check_cart_items', 'qualifies_for_incentive' );

function qualifies_for_incentive() { // Cart's Total Excluding Taxes
    if( ( is_cart() || is_checkout () ) {
        $free_product = 6971; // Incentive product we are giving away
        $cart_id = WC()->cart->generate_cart_id( $free_product ); // (equivalent to $prod_unique_id)
        $free_products_in_cart = WC()->cart->find_product_in_cart( $cart_id );
        $cart_amount = WC()->cart->subtotal;

        if( $cart_amount < 250 ) {
            // removing free product by unsetting it
            unset( WC()->cart->cart_contents[$cart_id] );
        }
        // The shortening "FOR LOOP": 
        // $amount goes by step of 250 until 10000 while 
        // $number is increased by 1 each step until 40.
        for( $amount = 250, $number=1; $amount <= 10000, $number<=40; $amount += 250, $number++ ){
            if( ( $cart_amount >= $amount ) {
                // Removing existing "free products" from the cart.
                WC()->cart->remove_cart_item( $free_products_in_cart ); 
                // Adding to cart a $number of free products 
                WC()->cart->add_to_cart( $free_product, $number );
            }
        } 
    }
}

This way it avoid to get some kind of lost when reviewing it.
.

It's the generated code by echoing what's inside the loop with that php file:

<html><head><title>The FOR loop in action (PHP)</title></head>
  <body>
	<p><br> - - - - - - - - - - - - - - - - - The FOR loop - - - - - - - - - - - - - - - - - <br></p>
	<div>
      <code><?php
	    for( $amount = 250, $number=1; $amount <= 10000, $number<=40; $amount += 250, $number++ ){
		  echo '
		    if( $cart_amount >= $amount ) {
				WC()->cart->remove_cart_item( $free_products_in_cart ); <br>
				WC()->cart->add_to_cart( $free_product, '.$number.' ); <br>
		    } <br>';
		}
    ?></code>
	</div>
	<p><br> - - - - - - - - - - - - - - - - - - - E N D  - - - - - - - - - - - - - - - - - - - <br></p>
  </body>
</html>

Undefined asked

2023-09-28