Php – WooCommerce add_to_cart Shortcode – Product already in Cart

PHPshortcodewoocommerceWordpress

I've added the WooCommerce shortcode "add_to_cart" successfully on a custom post type page.

[add_to_cart id="510"]

If there is nothing in the cart, it redirects to the shopping cart adding the product as intended. However, if the product is already in the cart and the user click the button on the custom post type page, it redirects back to itself.

The user can't add more than one of a given item to the cart. How can I check to see what's in the cart, so that if the user clicks the button it will redirect to the shopping cart if that product is already in there? Don't need any error message to come up like on the standard WooCommerce product page.

Thanks in advance for any ideas!

Aaron

Best Answer

Try this,

When the users clicks on the button you can check the current cart item with this code.

global $woocommerce;
foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $cart_item ) {

  if($cart_item['product_id'] == $your_product_id){
   //the item already added to the cart
 }
}

This will iterate the all items in the cart also if you want to add a product forcefully to the cart just need this,

$woocommerce->cart->add_to_cart($product_id,$qty);

Hope its helps..

Related Solutions

Php – Reference — What does this symbol mean in PHP

Incrementing / Decrementing Operators

++ increment operator

-- decrement operator

Example    Name              Effect
---------------------------------------------------------------------
++$a       Pre-increment     Increments $a by one, then returns $a.
$a++       Post-increment    Returns $a, then increments $a by one.
--$a       Pre-decrement     Decrements $a by one, then returns $a.
$a--       Post-decrement    Returns $a, then decrements $a by one.

These can go before or after the variable.

If put before the variable, the increment/decrement operation is done to the variable first then the result is returned. If put after the variable, the variable is first returned, then the increment/decrement operation is done.

For example:

$apples = 10;
for ($i = 0; $i < 10; ++$i) {
    echo 'I have ' . $apples-- . " apples. I just ate one.\n";
}

Live example

In the case above ++$i is used, since it is faster. $i++ would have the same results.

Pre-increment is a little bit faster because it really increments the variable and after that 'returns' the result. Post-increment creates a special variable, copies there the value of the first variable and only after the first variable is used, replaces its value with second's.

However, you must use $apples--, since first, you want to display the current number of apples, and then you want to subtract one from it.

You can also increment letters in PHP:

$i = "a";
while ($i < "c") {
    echo $i++;
}

Once z is reached aa is next, and so on.

Note that character variables can be incremented but not decremented and even so only plain ASCII characters (a-z and A-Z) are supported.

Stack Overflow Posts:

Understanding Incrementing

Best Answer

Related Solutions

Php – Reference — What does this symbol mean in PHP

Related Topic