Call multiple PHP functions on the click of a button

Question

I'm fairly new to php and ran into an issue adapting someone else's program. I am trying to implement a shopping cart style php and javascript program. The shopping cart accepts new entries by POSTing values by way of a submit button including id, quantity, name and price.

    <form method="post" style="border:0px solid yellow;" ><fieldset>
    <input type="hidden" name="jcartToken" value="<?php echo $_SESSION['jcartToken'];?>" />
        <input type="hidden" name="my-item-id" value="1" />
        <input type="hidden" name="my-item-name" value="apples" />
        <input type="hidden" name="my-item-price" value="2" />
        <input type="hidden" name="my-item-qty" value="1" size="3" />


<input id="apples" type="submit" name="my-add-button" class="add" value="&nbsp"/>Apples - $2

</fieldset></form>

The cart removes items by way of GET commands through the php file

    if($_GET['jcartRemove'] && !$_POST) {
        $this->remove_item($_GET['jcartRemove']);
    }

This GET command can be triggered through

    <a href="index.php?jcartRemove=apples">no more apples</a>

But this will only trigger once. What I want is to have a list of items

apples
oranges
bananas

and when one is selected and added to the cart through the form post method, the other two are automatically removed from the cart. Is there a way to use AJAX to push the jcartRemove function and remove two items by their ID?

Any help would be appreciated on this.

Ben Fried · Accepted Answer · 2015-07-17 16:54:24Z

1

Rather than making multiple AJAX calls, you'd be better off modifying your PHP and allowing the remove function to accept an array instead of just one item. Then you could pass it one or many items to remove all at once.

For example:

if($_GET['jcartRemove'] && !$_POST) {
    if (is_array($_GET['jcartRemove'])) {
        foreach($_GET['jcartRemove'] as $item) {
             $this->remove_item($item);
        }
    } else {
        $this->remove_item($_GET['jcartRemove']);
    }
}

Your link would look like this with multiple items:

<a href="index.php?jcartRemove[]=apples&jcartRemove[]=bananas">no more apples or bananas</a>

Because we're checking if jscartRemove is an array, you can still pass it a single item like you always have and it will continue to work as well.

edited Jul 17, 2015 at 16:54

answered Jul 17, 2015 at 15:28

Ben Fried

2,2141 gold badge16 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Answers_Seeker Over a year ago

Having this approach of considering both the html/js/ajax and php as tools to fulfill your requirements is core.

Patrick Over a year ago

Thank you for you help, but the code above causes the page to display as blank.

Patrick Over a year ago

And it does!! Thank you so greatly! I should have caught that typo myself, but Friday and all...

Collectives™ on Stack Overflow

Call multiple PHP functions on the click of a button

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related