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Welcome back.

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Now, what we need to do is that we need to work on the statement where if you there has already added

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something to the card.

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So if you use our has ADD, it has already added something to the cart.

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We need to to check whether the new product is one of the products that the user has already added to

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the cart or not.

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To do this, we need to create a new variable called product.

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Products are products under score array.

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Ideas which is going to return and an array with all products that are with or with all product ideas

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that have been added to the to the cart.

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And that can be done using the array column function.

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If I see a recall and if I pass the session to it session cart.

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Efficient car.

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And then if I pass the column that I'm interested in to the column is the product A-D.

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I'm going to say product maybe.

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This is going to return an array with all products, with all products, products, products, ads.

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So for example, if I added product, product that has an idea of two and three and four and ten and

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15.

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Then this array is going to return is going to return these items.

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And then we need to use this statement to check whether the product has already been added or not.

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So I'm going to say if if that product is not in the array, if in array.

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If an array.

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And then if in a array.

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If.

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If it's not in the array.

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The product.

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The product.

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It.

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Right.

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If.

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Comma and then.

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Product, products and rides.

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Let me explain this.

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I'm going to have your Kelly brackets.

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So this is going to check this statement is going to check if a product has already been added or not

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added to cart or not.

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How by by comparing this function in array is going to compare is going to try to find if this product

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it is is one of the product array it is one of the elements of the product's array IDs.

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So if that ID exists within exists in this are in this products array IDs, then we need to tell the

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user here to say here in this case product has already been at it's been at l a here.

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If not, then we need to add it to a card.

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So here, here in this, if we need to add it to the card and to add that to the card, we need to create

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another.

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We need to get an array like this.

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We need to we need to create a code like this and add that to the to the to the session to the session

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card.

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So I'm going to copy this card.

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And mean.

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I've got a business card here.

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I'm going to paste this code here, but I'm going to fix a few things.

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Let me push this and then I'm going to fix a few things.

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First, we need to say product ID is equal to the ID.

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That's fine.

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And then we need to pass these here in this array, this also fine.

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And finally, we need to have this array.

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So there isn't nothing.

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Nothing is going to be different.

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But instead of creating this long code, we can, for the sake of making everything simple, we can

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push.

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We can insert the past, the past parameters immediately.

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So we can say your product, product, underscore ID immediately without creating these parameters.

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So without using these parameters, because it's just going to take more code.

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If you don't want to do this, you can use the POS request immediately like this.

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This is just going to reduce the number of number of lines we have in our.

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So as you can see here, I removed these lines and now our code is much smaller.

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Much shorter now for for in case the user has already added this product to cart, we need to tell them.

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We need to say, for example, echo.

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Echo.

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Script.