CODEWITHSUNDEEP
phparrayscodeignitersession
Ben
Ben

Reputation: 4279

Remove item from session info

I am writing this project with CodeIgniter, where you can add and remove items from your bucket, like an internet shop.

I have an array inside my session class, what I'm trying to do is to search the elements by id and remove them. 

public function removeRow($id) {
    if ($id) {
        $bucket = $this->session->userdata('bucket');
        foreach ($bucket as $key => $value) {
            if ($value['id'] == $id) {
                unset($bucket[$key]);
            }
        }
        $this->session->set_userdata(array(
            'bucket' => $bucket
                )
        );
    }

and the session information:

Array
(
    [session_id] => e0c6303a7c24a05436ef0abfe2424c44
    [ip_address] => 127.0.0.1
    [user_agent] => Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:19.0) Gecko/20100101 Firefox/19.0
    [last_activity] => 1363718778
    [user_data] => 
    [a] => test
    [bucket] => Array
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [id] => 3
                            [name] => Maksas Frajus - Amžinybės glėbyje
                            [price] => 30.99
                        )

                )

            [1] => Array
                (
                    [0] => Array
                        (
                            [id] => 1
                            [name] => Maksas Frajus - Atėjūnas
                            [price] => 35.99
                        )

                )

            [2] => Array
                (
                    [0] => Array
                        (
                            [id] => 2
                            [name] => Maksas Frajus - Paprasti stebuklingi daiktai
                            [price] => 27.5
                        )

                )

        )

)

i get this error message :

Message: Undefined index: id

and i don't even know what I'm doing wrong. could someone explain?

Upvotes: 1

Views: 98

Answers (1)

kittycat
kittycat

Reputation: 15045

if ($value['id'] == $id) {

should be this:

if ($value[0]['id'] == $id) {

You have a nested array so you need to go one level deeper.

Example Array per comment below:

[bucket] => Array
    (
        [3] => Array
            (
                [id] => 3
                [name] => Maksas Frajus - Amžinybės glėbyje
                [price] => 30.99
            )

        [1] => Array
            (
                [id] => 1
                [name] => Maksas Frajus - Atėjūnas
                [price] => 35.99
            )

        [2] => Array
            (
                [id] => 2
                [name] => Maksas Frajus - Paprasti stebuklingi daiktai
                [price] => 27.5
            )

    )

Upvotes: 2

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